SOLUTION: If cos theta = 5/13, theta in Quad II, find sin theta and tan theta

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Question 1090398: If cos theta = 5/13, theta in Quad II, find sin theta and tan theta
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First off it's Q2 then cos%28theta%29%3C0,
So then,
sin%5E2%28theta%29%2Bcos%5E2%28theta%29=1
sin%5E2%28theta%29%2B%28-5%2F13%29%5E2=1%7D%7D%0D%0A%7B%7B%7Bsin%5E2%28theta%29=1-25%2F169
sin%5E2%28theta%29=144%2F169
sin%28theta%29=0+%2B-+12%2F13
Since it's Q2, sin%28theta%29%3E0
highlight%28sin%28theta%29=12%2F13%29
and
tan%28theta%29=%2812%2F13%29%2F%28-5%2F13%29
highlight%28tan%28theta%29=-12%2F5%29