Posted by Molly on .
Write the first expression in terms of the second if the terminal point determined by the t is in the given quadrant:
sin t, cos t; quadrant 2

precalculus 
Damon,
sin^2 t = 1  cos^2 t
sin t = +/ sqrt (1cos^2 t)
in quadrant 2, sin t is + so use + sign