`(cos 10^0+sin 10^0)/(cos 10^0-sin 10^0)` is equal to a.`tan55^0` b. `cos 55^0` c.`-tan35^0` d. `-cot35^0`

cos^2 48^0-sin^2 12^0 is equal to

Is (sin A )/( cos A) equal to tan A ?

sin 2x + cos x =0

The exact value of (96sin80^0sin65^0sin35^0)/(sin20^0+sin 50^0+sin 110^0) is equal to

Prove that, sin10^(@)+sin50^(@)-sin70^(@)=0

4\ cos\ 20^0\ -sqrt(3)\ cot\ 20^0\ =

If A+B+C=pi,\ t h e n\ |"sin"(A+B+C) sinB cosC -sinB 0 tanA "cos"(A+B) -tanA 0| is equal to a. 2sinB tanA cosC b. 1 c. 0 d. none of these

If cos("sin"^(-1)2/5+"cos"^(-1)x)=0 , then x is equal to _____

In DeltaABC,if cos A+ sin A -(2)/(cos B + sin B) =0, then (a+b)/c is equal to

If A=[{:(0,1),(1,0):}] , then A^(2) is equal to ......