[" (ii) "cos^(-1)((1)/(2))-2sin^(-1)(-(1)/(2))],[" sin "^(-1)(-(1)/(2))+2cos^(-1)(-(sqrt(3))/(2))]

sin^(-1)(-(sqrt(3))/(2))+cos^(-1)((sqrt(3))/(2))

1. sin^(-1)((1)/(sqrt(2))) 2. cos^(-1)((sqrt(3))/(2))

For the principal values,evaluate each of the following: sin^(-1)(-(1)/(2))+2cos^(-1)(-(sqrt(3))/(2))( ii) sin^(-1)(-(sqrt(3))/(2))+cos^(-1)((sqrt(3))/(2))

(a) sin^(-1)(-1/2)=? (b) cos^(-1)(sqrt3/2)=?

1. sin^(-1) (1/sqrt2) 2. cos^(-1) (sqrt3/2)

1. sin^(-1) (1/sqrt2) 2. cos^(-1) (sqrt3/2)

For the principal values, evaluate each of the following : (i) sin^(-1)(-1/2)+2cos^(-1)(-(sqrt(3))/2) (ii) sin^(-1)(-(sqrt(3))/2)+cos^(-1)((sqrt(3))/2)

sin^(-1)(1/2)+cos^(-1)(-sqrt3/2)=?

cos^(-1)((-1)/(2))-2sin^(-1)((1)/(2))+3cos^(-1)((-1)/(sqrt(2)))-4tan^(-1)(-1) equals to

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