Question

Write the value of x for which 2 tan inverse x = cos inverse ( 1-x^2 / 1 + x^2 ) holds

Answer 1

Step-by-step explanation:

let x = tanO लेते हैं।

2{tan-1(tanO)} = Cos-1(Cos2O)

2O = 2O

So , the value of x is tanO .