` Sin^(-1) (1)` is equal to

Sin^(–1)(1/2) is equal to

The equation of the common tangent to the curves y^(2)=4x and x^(2)+32y=0 is x+by+c=0 . the value of |sin^(-1)(sin1)+sin^(-1)(sinb)+sin^(-1)(sinc)| is equal to

sin^(-1)(sin3)+sin^(-1)(sin4)+sin^(-1)(sin5) is equal to