Question

1.) Find sin theta if cos theta = 1/4 and falls in quadrant 1

2.) Find tan theta of sin theta = 1/4 and falls in quadrant 2

3.) Find cos theta if tan theta -square root of -3/3 and falls in quadrant 2

please help ):

Answer 1

1) sin theta = sqr(15)/4

2)tan theta = - sqr(15)/15

3) cos theta = - sqr(3)/2