English Medium कक्षा १० - CBSE Question Bank Solutions for Mathematics

If  `sin theta = 1/2 , " write the value of" ( 3 cot^2 theta + 3).`

If `cos theta = 2/3 , " write the value of" (4+4 tan^2 theta).`

If `cos theta = 7/25 , "write the value of" ( tan theta + cot theta).`

If `cos theta = 2/3 , "write the value of" ((sec theta -1))/((sec theta +1))`

If 5 `tan theta = 4,"write the value of" ((cos theta - sintheta))/(( cos theta + sin theta))`

If 3 `cot theta = 4 , "write the value of" ((2 cos theta - sin theta))/(( 4 cos theta - sin theta))`

If `cot theta = 1/ sqrt(3)`, write the value of `((1 - cos^2 theta))/((2 - sin^2 theta))`.

If `tan theta = 1/sqrt(5), "write the value of" (( cosec^2 theta - sec^2 theta))/(( cosec^2 theta - sec^2 theta))`.

If ` cot A= 4/3 and (A+ B) = 90°  `  ,what is the value of tan B?

If `cos B = 3/5 and (A + B) =- 90° ,`find the value of sin A.

If `sqrt(3) sin theta = cos theta  and theta ` is an acute angle, find the value of θ .

Write the value of tan10° tan 20° tan 70° tan 80° .

Write the value of tan1° tan 2°   ........ tan 89° .

Write the value of cos1° cos 2°........cos180° .

If `tan A = 5/12`, find the value of (sin A + cos A) sec A.

`If sin theta = cos( theta - 45° ),where   theta   " is   acute, find the value of "theta` .

Find the value of ` ( sin 50°)/(cos 40°)+ (cosec 40°)/(sec 50°) - 4 cos 50°   cosec 40 °`

Find the value of sin ` 48° sec 42° + cos 48°  cosec 42°`

If x =  a sin θ and y = bcos θ , write the value of`(b^2 x^2 + a^2 y^2)`

If 5x = sec ` theta and 5/x = tan theta , " find the value of 5 "( x^2 - 1/( x^2))`