Question

prove that function f:r r defined by f(x)=x3 is one-one onto.

evaluate sin(π ÷ 2 - arcsin(1 ÷ 2))

evaluate  sin(pi-sin^-1(-1/2))

show that 2tan^-1(1/2)+tan^-1(1/7)=tan^-1(31/17)

if f:R-R is given by f(x)=(3-x³)^1/3 . find fof(x)

prove that a-b-c   2a   2a 

                  2b   b-c-a   2b       =(a+b+c)³

                   2c   2c   c-a-b 

How we can prove 🔺 sides are equal 

+1english grammar shall and will use