Question

please give answer this question ​

Answer 1

Step-by-step explanation:

Rationalise the inner term

And doing so u get

Cot (inv) [2+2sqrt(1-sin^2x) /-2sinx] =x/2

Cot(inv) [2+2cosx /-2sinx] = x/2

I hope know u can solve this....

Answer 2

Step-by-step explanation:

cot (inv) (2+2squrt(1-sin^2x)/ -2sinx)=x/2

(2+2cosx/-2sinx ) =x/2