Chapter 8 Introduction to Trigonometry

Chapter 8 Introduction to Trigonometry
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Chapter 8 Introduction to Trigonometry

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Chapter 8 Introduction to Trigonometry

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Chapter 9 Some Applications of Trigonometry

Description : Chapter 9 Some Applications of Trigonometry

Last Answer : Chapter 9 Some Applications of Trigonometry

Where can I find example trigonometry questions?

Description : Where can I find example trigonometry questions?

Last Answer : maybe more worded problems.

Could someone explain this trigonometry question for me?

Description : Could someone explain this trigonometry question for me?

Last Answer : answer:So I’ll explain what I get. lets replace h:o and d:a tan= o/a but of course we don’t have the full length of a so by rearranging it to o=tanθ a isn’t the right answer so far. I don’t get why tanθ2 / tan θ2 -tanθ1 is there.

Ratios of sides of a right triangle with respect to its acute angles are knownas ————– a. Trigonometric Identities b. Trigonometric Ratios c. Trigonometry d. trigonometry formula

Description : Ratios of sides of a right triangle with respect to its acute angles are knownas ————– a. Trigonometric Identities b. Trigonometric Ratios c. Trigonometry d. trigonometry formula

Last Answer : b. Trigonometric Ratios

When was trigonometry invented?

Description : When was trigonometry invented?

Last Answer : Hipparchus of 2nd century Greece first developed the field.

In the following figure ABCD is a cyclic quadrilateral, the sum of degree measures of ∠A and ∠D is: (SOURCE: Fig. 3.7, Exercise 3.7, Chapter 3, PAIR of LINEAR EQUATIONS in TWO VARIABLES, NCERT, Class X) (a) 120° (b) 180° (c) 230°(d) 250°

Description : In the following figure ABCD is a cyclic quadrilateral, the sum of degree measures of ∠A and ∠D is: (SOURCE: Fig. 3.7, Exercise 3.7, Chapter 3, PAIR of LINEAR EQUATIONS in TWO VARIABLES, NCERT, Class X) (a) 120° (b) 180° (c) 230°(d) 250°

Last Answer : (c) 230°

Chapter 15 Probability

Description : Chapter 15 Probability

Last Answer : Chapter 15 Probability

Chapter 14 Statistics

Description : Chapter 14 Statistics

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Chapter 13 Surface Areas and Volumes

Description : Chapter 13 Surface Areas and Volumes

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Chapter 12 Areas Related to Circles

Description : Chapter 12 Areas Related to Circles

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Chapter 11 Constructions

Description : Chapter 11 Constructions

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Chapter 10 Circles

Description : Chapter 10 Circles

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Chapter 7 Coordinate Geometry

Description : Chapter 7 Coordinate Geometry

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Chapter 6 Triangles

Description : Chapter 6 Triangles

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Chapter 5 Arithmetic Progressions

Description : Chapter 5 Arithmetic Progressions

Last Answer : Chapter 5 Arithmetic Progressions

Chapter 4 Quadratic Equations

Description : Chapter 4 Quadratic Equations

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Chapter 3 Pair of Linear Equations in Two Variables

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Chapter 2 Polynomials

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Chapter 1 Real Numbers

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NCERT Solutions for class 9 Maths Chapter 5 Introduction to Euclid’s Geometry Exercise 5.2 -Maths 9th

Description : NCERT Solutions for class 9 Maths Chapter 5 Introduction to Euclid’s Geometry Exercise 5.2 -Maths 9th

Last Answer : 1. How would you rewrite Euclid's fifth postulate so that it would be easier to understand ? We can have: Two distinct intersecting lines cannot be parallel to the same line. 2. Does Euclid's fifth postulate imply ... other side also. ∴ The lines m' and n' never meet, i.e., they are parallel.

MCQ Questions for Class 9 Maths Chapter 5 Introduction to Euclid`s Geometry with answers -Maths 9th

Description : MCQ Questions for Class 9 Maths Chapter 5 Introduction to Euclid`s Geometry with answers -Maths 9th

Last Answer : Below you will find MCQ Questions of Chapter 5 Introduction to Euclid`s Geometry Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking ... Euclid`s Geometry MCQ Questions will help you in practising more and more questions in less time.

Cbqs (case base study ) of chapter 5 Introduction to Euclid's Geometry of maths class 9th -Maths 9th

Description : Cbqs (case base study ) of chapter 5 Introduction to Euclid's Geometry of maths class 9th -Maths 9th

Last Answer : answer:

n2 – 1 is divisible by 8, if n is (a) an integer (b) a natural number (c) an odd integer (d) an even integer

Description : n2 – 1 is divisible by 8, if n is (a) an integer (b) a natural number (c) an odd integer (d) an even integer

Last Answer : (c) an odd integer

In a rhombus if d1 = 16 cm, d2 = 12 cm, then the length of the side of the rhombus is (a) 8 cm (b) 9 cm (c) 10 cm (d) 12 cm

Description : In a rhombus if d1 = 16 cm, d2 = 12 cm, then the length of the side of the rhombus is (a) 8 cm (b) 9 cm (c) 10 cm (d) 12 cm

Last Answer : (c) 10 cm

In a family of 3 children, probability of having at least one boy is: a. 7/8 b. 1/8 c. 5/8 d. 3/8

Description : In a family of 3 children, probability of having at least one boy is: a. 7/8 b. 1/8 c. 5/8 d. 3/8

Last Answer : a. 7/8

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

For what value of k , the following system of equations have infinite solutions : kx + 4y = k-4, 16x + ky = k (a) k = 2 (b) k = 4 (c) k = 6 (d) k = 8

Description : For what value of k , the following system of equations have infinite solutions : kx + 4y = k-4, 16x + ky = k (a) k = 2 (b) k = 4 (c) k = 6 (d) k = 8

Last Answer : (d) k = 8

For what value of k , the following system of equations have infinite solutions : kx + 4y = k-4, 16x + ky = k (a) k = 2 (b) k = 4 (c) k = 6 (d) k = 8

Description : For what value of k , the following system of equations have infinite solutions : kx + 4y = k-4, 16x + ky = k (a) k = 2 (b) k = 4 (c) k = 6 (d) k = 8

Last Answer : (d) k = 8

The distance of the point C from the y-axis is: (a) 2 units (b) 4 units (c) 8 units (d) 12 units

Description : The distance of the point C from the y-axis is: (a) 2 units (b) 4 units (c) 8 units (d) 12 units

Last Answer : (c) 8 units

A (5,-1) , B (-3,-2) and C (-1,8) are the vertices of ∆ ABC . The median from A meets BC at D ,then the coordinates of the point D are: (a) (-4,6) (b) (2,7/2) (c) (1,-3/2) (d) (-2,3)

Description : A (5,-1) , B (-3,-2) and C (-1,8) are the vertices of ∆ ABC . The median from A meets BC at D ,then the coordinates of the point D are: (a) (-4,6) (b) (2,7/2) (c) (1,-3/2) (d) (-2,3)

Last Answer : (d) (-2,3)

Points P,Q,R(in this order) divide the line joining the points A(-2,2) and B(2,8) into four equal parts. The coordinates of the point Q are: (a) (-1,7/2) (b) (1,13/2) (c) (0,5) (d) (5,1/2)

Description : Points P,Q,R(in this order) divide the line joining the points A(-2,2) and B(2,8) into four equal parts. The coordinates of the point Q are: (a) (-1,7/2) (b) (1,13/2) (c) (0,5) (d) (5,1/2)

Last Answer : (c) (0,5)

A boat is rowed downstream at 15.5 km/h and upstream at 8.5 km/h. The speed of the stream is: (a) 3.5 km/h (b) 5.75 km/h (c) 6.5 km/h (d) 7 km/h

Description : A boat is rowed downstream at 15.5 km/h and upstream at 8.5 km/h. The speed of the stream is: (a) 3.5 km/h (b) 5.75 km/h (c) 6.5 km/h (d) 7 km/h

Last Answer : (a) 3.5 km/h

In the given figure, if AB = 14 cm, BD = 10 cm and DC = 8 cm, then the value of tan B is a) 4/3 b) 14/3 c) 11/3 d) 9/12

Description : In the given figure, if AB = 14 cm, BD = 10 cm and DC = 8 cm, then the value of tan B is a) 4/3 b) 14/3 c) 11/3 d) 9/12

Last Answer : a) 4/3

If angle A is acute and cos A = 8/17 then cot A is : (a) 8/15 (b) 17/8 (c) 15/8 (d) 17/15

Description : If angle A is acute and cos A = 8/17 then cot A is : (a) 8/15 (b) 17/8 (c) 15/8 (d) 17/15

Last Answer : (a) 8/15

A garrison of 3300 men has provisions for 32 days, when given at a rate of 850 grams per head. At the end of 7 days are inforcement arrives and it was found that now the provisions will last 8 days less, when given at the rate of 825 grams per head. How, many more men can it feed?

Description : A garrison of 3300 men has provisions for 32 days, when given at a rate of 850 grams per head. At the end of 7 days are inforcement arrives and it was found that now the provisions will last 8 days less, when given at the rate of 825 grams per head. How, many more men can it feed?

Last Answer : Answer: 1700 men.

What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

Description : What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

Last Answer : Answer: 9

Find the smallest number in a GP whose sum is 38 and product 1728? (a) 12 (b) 20 (c) 8 (d) none of these

Description : Find the smallest number in a GP whose sum is 38 and product 1728? (a) 12 (b) 20 (c) 8 (d) none of these

Last Answer : (c) 8

Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job? (a) 8 hrs (b) 7 1/2 hrs (c) 7 hrs (d) 9 hrs

Description : Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job? (a) 8 hrs (b) 7 1/2 hrs (c) 7 hrs (d) 9 hrs

Last Answer : (b) 7 1/2 hrs

Pipe A can fill an empty tank in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins. If all of them work together, find the time taken to fill the tank? (a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these

Description : Pipe A can fill an empty tank in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins. If all of them work together, find the time taken to fill the tank? (a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these

Last Answer : (a) 17 1/7 mins

If x=y=2z and xyz=256 then what is the value of x? (a)12 (b)8 (c)16 (d)6

Description : If x=y=2z and xyz=256 then what is the value of x? (a)12 (b)8 (c)16 (d)6

Last Answer : (b)8

Where can I learn trigonometry and logarithms without having a panic attack?

Description : Where can I learn trigonometry and logarithms without having a panic attack?

Last Answer : Cheatsheet

Can you figure out this trigonometry problem?

Description : Can you figure out this trigonometry problem?

Last Answer : answer:Have you written it properly? If you do: 8 x sin(10°) * sin(30°) * sin(50°) * sin(70°) as a straight multiplication problem, then the answer is .5 (actually, .4999999999999…) See here

If triangle geometry is called trigonometry, what is circle geometry called?

Description : If triangle geometry is called trigonometry, what is circle geometry called?

Last Answer : My best guess would be polar, but that more refers to how to graph something with respect to circular coordinates than the actual geometric properties of a circle. Hmm, this is a tough one!

A real life job that uses trigonometry function?

Description : A real life job that uses trigonometry function?

Last Answer : Programming. I use trig quite often for graphical and spacial purposes.

What is the formula of trigonometry?

Description : What is the formula of trigonometry?

Last Answer : The answer depends on what other information is available toyou.

What is trigonometry ?

Description : What is trigonometry ?

Last Answer : Trigonometry is an important branch of mathematics. The English word trigonometry is a combination of the Greek word trigon meaning three angles and metron meaning measure. The advent of trigonometry to easily solve ever-new complex problems arising in the field of measurement.

Who is the father of trigonometry ?

Last Answer : Hippar Chas, the father of trigonometry.

Trigonometry Discovery Does Who ?

Last Answer : Greek Mathematician To hippocampus Trigonometric Of ideas Promoter As Consideration To do Is

Is it possible to solve a magic square made up of a system of unknown symbols?

Description : Is it possible to solve a magic square made up of a system of unknown symbols?

Last Answer : No. I could populate a 9×9 magic square with the letters A through I. You would never figure out what numbers were represented by the letters because a 9×9 magic square is not unique.

Did we invent math,or did we discover it?

Description : Did we invent math,or did we discover it?

Last Answer : God invented it.