English Medium कक्षा १० - CBSE Question Bank Solutions for Mathematics

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))`

If `cosec  theta = 2x and cot theta = 2/x ," find the value of"  2 ( x^2 - 1/ (x^2))`

If `sec theta + tan theta = x,"  find the value of " sec theta`

Find the value of `(cos 38° cosec 52°)/(tan 18° tan 35° tan 60° tan 72° tan 55°)`

If `sin theta = x , " write the value of cot "theta .`

If `sec theta = x ,"write the value of tan"  theta`.

Prove that `(sinθ - cosθ + 1)/(sinθ + cosθ - 1) = 1/(secθ - tanθ)`

Define an identity.

What is the value of (1 − cos² θ) cosec² θ? 

What is the value of (1 + cot² θ) sin² θ?

What is the value of \[\sin^2 \theta + \frac{1}{1 + \tan^2 \theta}\]

If sec θ + tan θ = x, write the value of sec θ − tan θ in terms of x.

If cosec θ − cot θ = α, write the value of cosec θ + cot α.

Write the value of cosec² (90° − θ) − tan² θ. 

Write the value of sin A cos (90° − A) + cos A sin (90° − A).

Write the value of \[\cot^2 \theta - \frac{1}{\sin^2 \theta}\]