Question: Find the value of sinθ if cosθ=−1/4 and θ is in Quadrant II
I have not done TRIG in a long time. Given this question, what should I read over/review ? I don't remember how to solve these types of questions?
The Attempt at a Solution
Not sure what kind of attempt I can do... I have to memorize the unit circle correct?
P.S. - Thanks to Mark an Sammy for recent help - Got 93% on my first of 3 midterms :)