The product of two different irrational numbers is always (a) rational (b) irrational (c) both of above (d) none of above

The product of two different irrational numbers is always
(a) rational
(b) irrational
(c) both of above
(d) none of above
by

1 Answer

Answer :

(b) irrational
by

Related questions

The sum or difference of of two irrational numbers is always (a) rational (b) irrational (c) rational or irrational (d) not determined

Description : The sum or difference of of two irrational numbers is always (a) rational (b) irrational (c) rational or irrational (d) not determined

Last Answer : (b) irrational

The sum of two irrational numbers is always (a) irrational (b) rational (c) rational or irrational (d) one

Description : The sum of two irrational numbers is always (a) irrational (b) rational (c) rational or irrational (d) one

Last Answer : (a) irrational

The product of a rational and irrational number is (a) rational (b) irrational (c) both of above (d) none of above

Description : The product of a rational and irrational number is (a) rational (b) irrational (c) both of above (d) none of above

Last Answer : (b) irrational

The sum of a rational and irrational number is (a) rational (b) irrational (c) both of above (d) none of above

Description : The sum of a rational and irrational number is (a) rational (b) irrational (c) both of above (d) none of above

Last Answer : (b) irrational

Give two examples to show that the product of two irrational numbers may be a rational number . -Maths 9th

Description : Give two examples to show that the product of two irrational numbers may be a rational number . -Maths 9th

Last Answer : Take a = (2+ √3) and b =(2 - √3 ); a and b are irrational numbers, but their product = 4-3 = 1, is a rational number. Take c = √3 and d = -√3; c and d are irrational numbers. but their product = -3, is a rational number.

Give two examples to show that the product of two irrational numbers may be a rational number . -Maths 9th

Description : Give two examples to show that the product of two irrational numbers may be a rational number . -Maths 9th

Last Answer : Take a = (2+ √3) and b =(2 - √3 ); a and b are irrational numbers, but their product = 4-3 = 1, is a rational number. Take c = √3 and d = -√3; c and d are irrational numbers. but their product = -3, is a rational number.

How many rational numbers and irrational numbers can be inserted between 2 and 3 ? -Maths 9th

Description : How many rational numbers and irrational numbers can be inserted between 2 and 3 ? -Maths 9th

Last Answer : There are infinite number of rational and irrational numbers between 2 and 3 .

Identify the following as rational or irrational numbers .Give the decimal representation of rational numbers. -Maths 9th

Description : Identify the following as rational or irrational numbers .Give the decimal representation of rational numbers. -Maths 9th

Last Answer : In this way we can represent a rational numbers

In the following equations , find which of the variables x, y, z etc. represent rational numbers and which represent irrational numbers -Maths 9th

Description : In the following equations , find which of the variables x, y, z etc. represent rational numbers and which represent irrational numbers -Maths 9th

Last Answer : Following are the rational numbers which represent irrational numbers .

Examine , whether the following numbers are rational or irrational : -Maths 9th

Description : Examine , whether the following numbers are rational or irrational : -Maths 9th

Last Answer : ∴ It is an irrational number .

Examine whether the following numbers are rational or irrational: -Maths 9th

Description : Examine whether the following numbers are rational or irrational: -Maths 9th

Last Answer : 1 irrational no. 2 rational no. 3 irrational no.

Let x and y be rational and irrational numbers, respectively. -Maths 9th

Description : Let x and y be rational and irrational numbers, respectively. -Maths 9th

Last Answer : Yes, (x + y) is necessarily an irrational number.

Classify the following numbers as rational or irrational with justification . -Maths 9th

Description : Classify the following numbers as rational or irrational with justification . -Maths 9th

Last Answer : Classification of rational or irrational number with justification

Find which of the variables x, y, z and u represent rational numbers and which irrational numbers. -Maths 9th

Description : Find which of the variables x, y, z and u represent rational numbers and which irrational numbers. -Maths 9th

Last Answer : Rational number and irrational number

How many rational numbers and irrational numbers can be inserted between 2 and 3 ? -Maths 9th

Description : How many rational numbers and irrational numbers can be inserted between 2 and 3 ? -Maths 9th

Last Answer : There are infinite number of rational and irrational numbers between 2 and 3 .

Identify the following as rational or irrational numbers .Give the decimal representation of rational numbers. -Maths 9th

Description : Identify the following as rational or irrational numbers .Give the decimal representation of rational numbers. -Maths 9th

Last Answer : In this way we can represent a rational numbers

In the following equations , find which of the variables x, y, z etc. represent rational numbers and which represent irrational numbers -Maths 9th

Description : In the following equations , find which of the variables x, y, z etc. represent rational numbers and which represent irrational numbers -Maths 9th

Last Answer : Following are the rational numbers which represent irrational numbers .

Examine , whether the following numbers are rational or irrational : -Maths 9th

Description : Examine , whether the following numbers are rational or irrational : -Maths 9th

Last Answer : ∴ It is an irrational number .

Examine whether the following numbers are rational or irrational: -Maths 9th

Description : Examine whether the following numbers are rational or irrational: -Maths 9th

Last Answer : 1 irrational no. 2 rational no. 3 irrational no.

Let x and y be rational and irrational numbers, respectively. -Maths 9th

Description : Let x and y be rational and irrational numbers, respectively. -Maths 9th

Last Answer : Yes, (x + y) is necessarily an irrational number.

Classify the following numbers as rational or irrational with justification . -Maths 9th

Description : Classify the following numbers as rational or irrational with justification . -Maths 9th

Last Answer : Classification of rational or irrational number with justification

Find which of the variables x, y, z and u represent rational numbers and which irrational numbers. -Maths 9th

Description : Find which of the variables x, y, z and u represent rational numbers and which irrational numbers. -Maths 9th

Last Answer : Rational number and irrational number

Classify the following numbers as rational or irrational and give justification of your answer. -Maths 9th

Description : Classify the following numbers as rational or irrational and give justification of your answer. -Maths 9th

Last Answer : (i) 0.05918 is a rational number as decimal expansion is terminating. (ii)1.010010001.... is an irrational number as decimal expansion is non-terminating non-recurring(non-repeating). (iii) √9/27 = √1/3 = 1/ ... it is an irrational number. (iv) √12/75 = √4/25 = 2/5, which is a rational number.

What is the difference between rational and irrational numbers ?

Description : What is the difference between rational and irrational numbers ?

Last Answer : rational , irrational is the classification of real numbers. Before we talk about them , first let's talk about p / q size. p / q is a fraction where p and q will meet two conditions-- ( i) Both p and q can be any positive or negative integer ... ................................................ ....

The decimal expansion of the rational number 23/(2 2 . 5) will terminate after (a) one decimal place (b) two decimal places (c) three decimal places (d) more than 3 decimal places

Description : The decimal expansion of the rational number 23/(2 2 . 5) will terminate after (a) one decimal place (b) two decimal places (c) three decimal places (d) more than 3 decimal places

Last Answer : (b) two decimal places

Is the product of two irrational numbers always irrational ? Justify your answer. -Maths 9th

Description : Is the product of two irrational numbers always irrational ? Justify your answer. -Maths 9th

Last Answer : Solution :- No, sometimes rational,sometimes irrational.

Give an example to show that the product of a rational number and an irrational number may be a rational number . -Maths 9th

Description : Give an example to show that the product of a rational number and an irrational number may be a rational number . -Maths 9th

Last Answer : A rational number 0 multiplied by an irrational number gives the irrational number 0.

Give an example to show that the product of a rational number and an irrational number may be a rational number . -Maths 9th

Description : Give an example to show that the product of a rational number and an irrational number may be a rational number . -Maths 9th

Last Answer : A rational number 0 multiplied by an irrational number gives the irrational number 0.

Is the product of a nonzero rational and a irrational number irrational?

Description : Is the product of a nonzero rational and a irrational number irrational?

Last Answer : Yes, always.

What is product of a nonzero rational number and a irrational number?

Description : What is product of a nonzero rational number and a irrational number?

Last Answer : It is an irrational number.

How are the British names for large numbers different from the American names?

Description : How are the British names for large numbers different from the American names?

Last Answer : 1,000,000,000 = billion in America, thousand million in England. 1,000,000,000,000 = trillion in America, billion in England. 1,000,000,000,000,000 = quadrillion in America, thousand billion in England. 1,000,000,000,000,000,000 = quintillion in America, trillion in England.

Is the product of two rational numbers always rational?

Description : Is the product of two rational numbers always rational?

Last Answer : Yes, it is.

If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Description : If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Last Answer : None of the above. Let x be the three digit number and y be the two digit number. x - y =989. x = 989 + y. x is obviously greater than 989 and less than 1000 (since it is three digits). Since y is a two digit number ... 989 + 10 = 999. We can't go any higher, so x =999 and y=10. x+y = 999+10 = 1009

If m and n are two odd prime numbers such that m (a) an even number (b) an odd number (c) an odd prime number (d) a prime number

Description : If m and n are two odd prime numbers such that m (a) an even number (b) an odd number (c) an odd prime number (d) a prime number

Last Answer : (a) an even number

H.C.F of two prime numbers is (a) 1 (b) 0 (c) 3 (d) 2

Description : H.C.F of two prime numbers is (a) 1 (b) 0 (c) 3 (d) 2

Last Answer : (a) 1

Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8? a. 1 b. 5/36 c. 1/18 d. 5/18

Description : Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is greater than 8? a. 1 b. 5/36 c. 1/18 d. 5/18

Last Answer : d. 5/18

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7? a. 5/9 b. 5/36 c. 1/6 d. 0

Description : Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is equal to 7? a. 5/9 b. 5/36 c. 1/6 d. 0

Last Answer : c. 1/6

Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12? a. 1 b. 5/36 c. 1/18 d. 0

Description : Now it was Ravi‘s turn. He rolled the dice. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is less than or equal to 12? a. 1 b. 5/36 c. 1/18 d. 0

Last Answer : a. 1

Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13? a. 1 b. 5/36 c. 1/18 d. 0

Description : Rahul got next chance. What is the probability that he got the sum of the two numbers appearing on the top face of the dice is 13? a. 1 b. 5/36 c. 1/18 d. 0

Last Answer : d. 0

Two dice are thrown together. Find the probability that the sum of the numbers obtained is even a. 1/4 b. 1/6 c. 1/3 d. 1/2

Description : Two dice are thrown together. Find the probability that the sum of the numbers obtained is even a. 1/4 b. 1/6 c. 1/3 d. 1/2

Last Answer : d. 1/2

To the nearest 10%, what percentage of all numbers contain a 9?

Description : To the nearest 10%, what percentage of all numbers contain a 9?

Last Answer : You probably need to clarify that you mean what percentage of the set of all integers contains the digit 9'? Because there are an infinite number of numbers that don't contain that digit (and ... is also an infinite set of digits that does not. Maybe you need to restrict your range some more.

Is the previous result of lotteries useful for predicting the numbers of a lottery ticket?

Description : Is the previous result of lotteries useful for predicting the numbers of a lottery ticket?

Last Answer : No. Every time is random.

If 4! = 1x2x3x4 and is called 4 factorial, what is the sum of the numbers e.g. 4(?)= (1+2+3+4) called?

Description : If 4! = 1x2x3x4 and is called 4 factorial, what is the sum of the numbers e.g. 4(?)= (1+2+3+4) called?

Last Answer : What’s wrong with the summation notation? It does just that. I don’t think there’s any other way of expressing it other than writing it out. [addition]: After more research, I found a formula where 1+2+3+4….+n= n*(n+1)/2 http://en.wikipedia.org/wiki/Triangular_number

What's the longest known sequence of non-prime numbers?

Description : What's the longest known sequence of non-prime numbers?

Last Answer : My guess would be that such sequences grow in length with as number size gets larger. Prime numbers become increasing scarce as numbers get larger, making it more likely to find long sequences of primes.

Brain Teaser - Indivisibility properties of sequence of numbers?

Description : Brain Teaser - Indivisibility properties of sequence of numbers?

Last Answer : Mmmm homework =)

Brain Teaser - Working with numbers that don't divide into one another?

Description : Brain Teaser - Working with numbers that don't divide into one another?

Last Answer : 1) Write all of those numbers in the form: 2^k * m where m is an odd integer and k is a non-negative integer. Obviously m < 50. Since we have 25 odd numbers less than 50 if we pick 26 numbers between 1 and ... and hence n is at least 3 m. Hence k is larger than l. For (3) I should think a bit more.

The least number that is divisible by all the numbers from 1 to 5 is: (a) 70 (b) 60 (c) 80 (d) 90

Description : The least number that is divisible by all the numbers from 1 to 5 is: (a) 70 (b) 60 (c) 80 (d) 90

Last Answer : (b) 60

If a number x is chosen at random from the numbers -2, -1, 0 1, 2. What is the probability that x 2 < 2? a. 2/5 b. 3/5 c. 1/4 d. 4/7

Description : If a number x is chosen at random from the numbers -2, -1, 0 1, 2. What is the probability that x 2 < 2? a. 2/5 b. 3/5 c. 1/4 d. 4/7

Last Answer : b. 3/5

A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4. a. 3/25 b. 2/25 c. 1/25 d. 13/50

Description : A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4. a. 3/25 b. 2/25 c. 1/25 d. 13/50

Last Answer : b. 2/25

Chapter 1 Real Numbers

Description : Chapter 1 Real Numbers

Last Answer : Chapter 1 Real Numbers