Evaluate `cos(cos^(-1)(2/3)-sin^(-1)(2/3))`

Evaluate cos(sin^(-1)(4/5)+cos^(-1)(2/3))

Evaluate sin[2cos^(-1)(-3/5)] .

The principal value of cos^(-1)(cos 2pi/3)+ sin^(-1) sin(2pi/3) is

Write the principal value of cos^(-1)(cos(2 pi)/(3))+sin^(-1)(sin(2 pi)/(3))

What is the value of cos^(-1)(cos(2pi)/3)+sin^(-1)(sin(2pi)/3) ?

cos("sin"^(-1)(1)/(2)+"cos"^(-1)(1)/(3))=

What is the principal value of cos^(-1)cos((2 pi)/(3))+sin^(-1)sin((2 pi)/(3))?

Find the value of : cos[(pi)/3-"sin"^(-1)(-1/2)]

If alpha=sin(sin^(-1)( 1/sqrt3)/(3)),beta=cos(cos^(-1)((1)/(sqrt(5)))-sin^(-1)((2)/(sqrt(5)))) then (beta^(2))/((3 alpha-4a^(3))^(2)) is

Find the principal value of cos^(-1){sin{cos^(-1)(1)/(2))}