Question

the point (2,3) is in the terminal side of an angle theta, in standard position. what are the values of sine, cosine, and tangent of theta?

Answer 1

(2,3) so x=2, y=3 and h=(2^2+3^2)^(1/2)=√13

sina=3/√13, cosa=2/√13, tana=3/2 Afterwards multiply sina and cosa by √13/√13 and get sina=(3√13)/13 and cosa=(2√13)/13