prove  cosx( 1- tan x)= cos x- sin x

Q: Is sin-1 x the same thing as1/sin x?

A:

Q: ·S Evaluate cos x sin³ x dx. + C

A: To evaluate the following integral.

Q: simplify sin x-1/cos x - cos x /sin x-1

A: The given expression is

Q: Show that os (2 tan~ r) COs

A: We have to prove that cos(2tan-1x)=1-x21+x2.

Q: find solution set of tan-1x-cot-1x=cos-1(2-x)

A:

Q: cos x-sinxtanx=

A:

Q: Differentiate  cosx/x

A: The given function is f(x) =(cosx)/x       = x-1.cosx

Q: Prove sin 2  x/2=  tan x - sin x / 2 tan  x

A: The given identity is sin2x2=tanx-sinx2tanx

Q: cosx+1=sinx

A: