" 12."cos^(-1)((1)/(2))+2sin^(-1)((1)/(2))

cos ^(-1) (1)/(2)+2 sin ^(-1) (1)/(2)=

Evaluate "cos"^(-1)(1/(2))+2"sin"^(-1)(1/(2)) .

sin(sin^(-1)(1)/(2)+cos^(-1)(1)/(2))

cos [cos^(-1)(-1/2)-sin^(-1)(1/2)]

For the principal values, evaluate each of the following : (i) cos^(-1) (1/2)+2sin^(-1) (1/2) (ii) cos^(-1)(1/2)-2sin^(-1)(-1/2)

If sin^(-1)((5)/(x))+sin^(-1)((12)/(x))=sin^(-1)((2)/(x))+cos^(-1)((2)/(x)) then the value of x is equal to

If sin^(-1)((5)/(x))+sin^(-1)((12)/(x))=sin^(-1)((2)/(x))+cos^(-1)((2)/(x)) then the value of x is equal to

cos^(-1)(1/2)+2sin^(-1)(1/2) is equal to

The value of 2cos^(-1)(-1/2)-2 sin^(-1)(-1/2)-cos^(-1)(-1) is

The value of 2cos^(-1)(-1/2)-2 sin^(-1)(-1/2)-cos^(-1)(-1) is