" in "cos(2sin^(-1)x)

solve the following equations cos(2sin^(-1)x)=1/9

Solve for x : (i) tan^(-1)(x+1)+tan^(-1)(x-1)=tan^(-1)""8/31 (ii) tan^(-1)(2+x)+tan^(-1)(2-x)=tan^(-1)""2/3 (iii) cos(sin^(-1)x)=1/9 (iv) cos(2sin^(-1)x)=1/9

Solve for x : cos(2sin^(-1)x)=1/3

Solve for x : cos(2sin^(-1)x)=1/3

Prove that : cos (2 sin^(-1) x) = 1-2x^2

Prove that : cos (2 sin^(-1) x) = 1-2x^2

Express the value of cos(2 sin^(-1)x) in simplest form.

Express the value of the following in simplest form. "cos"(2"sin"^(-1)x)

Solve for x, cos (2sin^(-1)x)=(1)/(9), x gt 0 .