Question

If r(t)=(cos1 t,sin1 t)
Then find r'(pi/4)=( ? , ? )

Answer 1

retype the question properly

Answer 2

For the given position vectors r(t) compute the tangent velocity vector r′(t) for the given value of t .

If r(t)=(cos1 t,sin1 t)
Then find r'(pi/4)=( ? , ? )