Description : What are trigonometric ratios? -Maths 10th
Last Answer : The trigonometric ratios of the angle A in the right triangle ABC are defined as follows: sine of ∠A = side opposite to angle Ahypotenuseside opposite to angle Ahypotenuse = BCACBCAC cosine of ∠A = side ... of angle A = ACABACAB cotangent of ∠A = 1tangent of angle A1tangent of angle A = ABBCABBC
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
Description : The values of the trigonometric ratios of an angle ———— with the lengths of the sides of the triangle, if the angle remains the same. a. vary b. Do not vary c. None of these D. Both
Last Answer : b. Do not vary
Description : If cosec A = 2, then the value of 1/(tan A) + (sin A)/(1+cos A) is -Maths 9th
Last Answer : answer:
Description : If (cos x)/(1 + cosec x) + (cos x)/(cosec x - 1)= 2which one of the following is one of the values of x ? -Maths 9th
Description : If sin x + cosec x = 2, then sin^n x + cosec^n x is equal to -Maths 9th
Description : If tan^2 y cosec^2 x – 1 = tan^2 y, then which one of the following is correct? -Maths 9th
Description : If cosec |-sin |=l and sec |- cos |=m, prove that l2m2(l2+m2+3)=1 -Maths 9th
Last Answer : cosec(A) - sin(A) = l ⇒ 1/sin(A) - sin(A) = l ⇒ l² = 1/sin²(A) + sin²(A) - 2 --------- sec(A) - cos(A) = m ⇒ 1/cos(A) - cos(A) = m ⇒ m² = 1/cos²(A) + cos²(A) - 2 ---------- l²m² = [1/sin²(A) + ... A)) = = 1/(sin²(A)cos²(A)) ------------- ⇒ l²m² (l² + m² + 3) = sin²(A)cos²(A) / [sin²(A)cos²(A)] = 1
Description : If cosec |=3x and cot |=3/x. then find the value of (x2-1/x2) -Maths 9th
Last Answer : cosecβ = = 3X and cotβ = 3/X , to find value ( X2 - 1/X2 ) . we know , cosec2β = cot2β +1 putting value , (3X )2 = ( 3/X )2 +1 , OR 9X2 = 9 /X2 + 1 , OR 9X2 – 9/X2 = 1, OR 9( X2 - 1/X2 ) = 1, SO (X2 – 1/X2 ) = 1/9
Description : The length, breadth and height of a rectangular parallelopiped are in the ratios 6 : 3 : 1. If the surface area of a cube is equal -Maths 9th
Description : A 4 cm cube is cut into 1 cm cubes. Calculate the total surface area of all the small cubes. -Maths 9th
Last Answer : Side of cube = 4 cm But cutting into 1 cm cubes, we get = 4 x 4 x 4 = 64 Now surface area of one cube = 6 x (1)² = 6 x 1=6 cm² and surface area of 64 cubes = 6 x 64 cm² = 384 cm²
Description : Calculate the edge of the cube if its volume is 1331 cm3 -Maths 9th
Last Answer : Let the edge of the cube be a Volume of a cube = a×a×a 1331= a×a×a 11 =a ( as 1331 is the cube of 11 Therefore , Edge of a cube is 11 cm
Description : Calculate the surface area of a hemispherical dome of a temple with radius 14 m to be whitewashed from outside. -Maths 9th
Last Answer : Here, radius of hemispherical dome (r) = 14 m Surface area of dome = 2πr2 = 2 × 22 / 7 × 14 × 14 = 1232 m2 Hence , total surface area to be whitewashed from outside is 1232 m2
Description : Calculate 4th root of 193 + underroot 2178 -Maths 9th
Last Answer : This answer was deleted by our moderators...
Description : Calculate the perimeter of a rectangle whose area is 25x2 – 35x + 12. -Maths 9th
Last Answer : Given, Area of rectangle = 25x2 - 35x + 12 We know, area of rectangle = length breadth So, by factoring 25x2 - 35x + 12, the length and breadth can be obtained. 25x2 - 35x + 12 = 25x2 - 15x - 20x + 12 => 25x2 - 35x + ... )] = 2(5x - 3 + 5x - 4) = 2(10x - 7) = 20x - 14 So, the perimeter = 20x - 14
Description : How to solve this trigonometric mathematic function? (Details inside)
Last Answer : answer:According to this wiki article, subtracting two arcsines can be rewritten as the arcsine of the first number times the square root of 1 minus the second number squared, minus the second number times the square root ... sqrt(1-b^2) - b*sqrt(1-a^2)) Does that point you in the right direction?
Description : What do you think of this proof of trigonometric angle addition formula?
Last Answer : answer:Seems intuitive enough, but the first statement, that vector addition is independent of the coordinate frame, seems like a conclusion that might have been reached with the help of ... In short, did they use preexisting trigonometric angle addition in the background of this proof?
Description : What's the key to remembering how to draw each of the different trigonometric function graphs? (i.e. sin, cos, tan)
Last Answer : SOH – sin CAH – cos TOA – tan sin = opposite over hypotenuse cos = adjacent over hypotenuse tan = opposite over adjacent
Description : What is meant by geometric angles and trigonometric angles ?
Last Answer : The concept of angles is limited in geometry. That is, in a geometric concept the angle is always positive and its value is limited to 0 ° to 360 . But in trigonometry, a beam can ... infinite rotation. The ray produces a positive angle by turning clockwise and a negative angle by turning clockwise.
Last Answer : trigonometric Ratio Total 3 T.
Description : What is the trigonometric ratio for the sine of an angle?
Last Answer : Sine θ = opposite side ÷ hypotenuse.
Description : What is the function of Cosec (Cosec) tablet ?
Last Answer : : Used in acid related dyspepsia , peptic ulcer , gastric ulcer etc.
Description : `int_(0)^(pi//2) " cosec "(x-(pi)/(3)) " cosec "(x-(pi)/(6)) dx=?`
Last Answer : `int_(0)^(pi//2) " cosec "(x-(pi)/(3)) " cosec "(x-(pi)/(6)) dx=?` A. `-log 3` B. `-2 log 3` C. `2 log 3` D.
Description : `int_(0)^(pi) sin (n+(1)/(2))x. " cosec ".(x)/(2) dx=?`
Last Answer : `int_(0)^(pi) sin (n+(1)/(2))x. " cosec ".(x)/(2) dx=?` A. `(pi)/(2)` B. `pi` C. `2pi` D.
Description : `(i) int_(0)^(pi//4) e^(tanx) . sec^(2) x dx` `(ii) int_(0)^(pi//4) (sin (cos 2x))/(" cosec " 2x)dx`
Last Answer : `(i) int_(0)^(pi//4) e^(tanx) . sec^(2) x dx` `(ii) int_(0)^(pi//4) (sin (cos 2x))/(" cosec " 2x)dx`
Description : `int_(pi//6)^(pi//2) (" cosec x cot x")/(1+" cosec "^(2) x)dx`
Last Answer : `int_(pi//6)^(pi//2) (" cosec x cot x")/(1+" cosec "^(2) x)dx`
Description : `int_(0)^(pi//4) cos 0. " cosec"^(2) 0 do`
Last Answer : `int_(0)^(pi//4) cos 0. " cosec"^(2) 0 do`
Description : `int_(-pi//4)^(pi//4) "cosec"^(2) x dx`
Last Answer : `int_(-pi//4)^(pi//4) "cosec"^(2) x dx`
Description : `int e^(x). "(cot x- cosec"^(2)" x) dx "`
Last Answer : `int e^(x). "(cot x- cosec"^(2)" x) dx "`
Description : `int " cosec"^(3) " x dx "`
Last Answer : `int " cosec"^(3) " x dx "`
Description : `intsec^(6//5) x. "cosec"^(4//5) x dx`
Last Answer : `intsec^(6//5) x. "cosec"^(4//5) x dx`
Description : (i) `int(sec x* cosec x)/(log cot x) dx` (ii) `int tan^(4) x dx`
Last Answer : (i) `int(sec x* cosec x)/(log cot x) dx` (ii) `int tan^(4) x dx`
Description : `int " cosec"^(4) 2x dx`
Last Answer : `int " cosec"^(4) 2x dx`
Description : `int cot^(3) x. cosec^(2) x dx `
Last Answer : `int cot^(3) x. cosec^(2) x dx `
Description : `int cosec^(2)x. sqrt(cot) dx`
Last Answer : `int cosec^(2)x. sqrt(cot) dx`
Description : Consider the matrix function `A(x)=[{:(cos^(-1)x,sin^(-1)x,cosec^(-1)x),(sin^(-1)x,sec^(-1)x,tan^(-1)x),(cosec^(-1)x,tan^(-1)x,cot^(-1)x):}]` and `B =
Last Answer : Consider the matrix function `A(x)=[{:(cos^(-1)x,sin^(-1)x,cosec^(-1)x),(sin^(-1)x,sec^(-1)x,tan^(-1)x),( ... )=-A(x)` D. `A(x) + A(-x) = - piI_(3)`
Description : In trapezoidal threads, f (coefficient of friction) can be taken as a) f sec θ b) f cos θ c) f sin θ d) f cosec θ
Last Answer : a) f sec θ
Description : The value of sec A or cosec A is always —————- a. Less than or equal to one b. Greater than or equal to one c. Equal to one d. Negative
Last Answer : b. Greater than or equal to one
Description : Reciprocal of sin A is ————- a. cosec A b. sec A c. cot A d.Tan a
Last Answer : a. cosec A
Description : If cosec A = 5/4 ,then cot A = (a) ) 4/5 (b) 50/40 (c) 3/4 (d) 4/3
Last Answer : (c) 3/4
Description : While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance (A) 20 (sin - 1) (B) 20 (cos - 1) (C) 20 (sec - 1) (D) 20 (cosec - 1)
Last Answer : (C) 20 (sec - 1)
Description : In the given figure, if chords AB and CD of the circle intersect each other at right angles, then find x + y. -Maths 9th
Last Answer : ∴ ∠CAO = ∠ODB = x [angles in same segment ] ---- (i) Now, in right angled ΔDOB , ∠ODB + ∠DOB + ∠OBD = 180° ⇒ x + 90° + y =180° (using equation i) ⇒ x + y = 90°
Description : Convert each of the following ratios into a percentage: (i) 37 : 100 (ii) 16 : 25 (iii) 3 : 5 (iv) 5 : 4 -Maths
Description : Isoenzymes for a given reaction (A) Have different spedificities (B) Have identical affinities for the same substrate (C) Exhibit different electrophoretic motilities (D) Contain similar ratios of different polypeptide chains
Last Answer : Answer : B
Description : ________ is characteristic of liquidity ratios. (a) Organization's ability to meet its current debt obligations (b) Organization's use of debt to finance its assets and whether it's able to meet the interest ... the debt ;(c) How efficiently the firm is using its assets ;(d) None of given options
Last Answer : (a) Organization’s ability to meet its current debt obligations
Description : he frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. -Maths 9th
Last Answer : Say h = height of the frame of lampshade, looks like cylindrical shape r = radius Total height is h = (2.5+30+2.5) cm = 35cm and r = (20/2) cm = 10cm Use curved surface area formula to find the ... 2πrh = (2 (22/7) 10 35) cm2 = 2200 cm2 Hence, 2200 cm2 cloth is required for covering the lampshade.
Description : Construct a histogram for the marks of the student given below : - Marks 0-10,10-30,30-45,45-50,50-60 and number of students 8,32,18,10,6 -Maths 9th
Last Answer : see in book okay!!!