If `y=cos^(-1)(2x)+2cos^(-1)sqrt(1-4x^2),-1/2

If y=cos^(-1)(2x)+2cos^(-1)sqrt(1-4x^2) ,x is [-1/2,0] , find (dy)/(dx)

If y=cos^(-1)(2x)+2cos^(-1)sqrt(1-4x^2), 0

If y=cos^(-1)(2x)+2cos^(-1)sqrt(1-4x^2),\ \ \ x \ \ is \ [0,1/2] , find (dy)/(dx) .

If quad cos^(-1)(2x)+2cos^(-1)sqrt(1-4x^(2)),-(1)/(2)

Find dy/dx when y = cos^-1 (2x) + 2 cos^-1 sqrt(1-4x^2)

If 1/(sqrt(2))

3cos^(-1)x=sin^(-1)(sqrt(1-x^(2))(4x^(2)-1))

Solve : cos^(-1)(1/2x^2+sqrt(1-x^2).sqrt(1-(x^2)/4))=cos^(-1)x/2-cos^(-1)xdot

If y=(x cos^(-1)x)/(sqrt(1-x^(2)))-log sqrt(1-x^(2)), then prove that (dy)/(dx)=(co^(1-x)x)/((1-x^(2))^((3)/(2)))

Prove the followings : cos^(-1)x=2sin^(-1)sqrt((1-x)/2)=2cos^(-1)sqrt((1+x)/2)