Question

Find the requested function value meeting all of the given conditions.
sinx=sqrt3/2 and tanx>0. find cosx

Answer 1

as tanx is +ve, cosx must be positive.
sinx=sqrt(3)/2. \[cosx=\sqrt{1-\sin^{2}x}\]

Answer 2

so would the answer be 1/2?

Answer 3

yes

Answer 4

thanks!