Question

Write the expression sin(tan^-1)2x)

Answer 1

\[\theta = \tan^{-1} 2x\]
\[\tan \theta = 2x\]
we want to find sin theta
using triangles .... tan = opp/adj = 2x/1
** sorry its not letting me use the draw feature**
hyp = sqrt(1+4x^2)

sin theta = 2x/sqrt(1+4x^2)

Answer 2

thnk you!!

Answer 3

yw :)