SOLUTION: If sin t= 5/13, what is cos t?

SOLUTION: If sin t= 5/13, what is cos t?

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Question 595498: If sin t= 5/13, what is cos t?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
sin^2 + cos^2 = 1

(5/13)^2 + cos^2 = 1

25/169 + cos^2 = 1

cos^2 = 1 - 25/169

cos^2 = 144/169

cos = sqrt(144/169)

cos = 12/13

So cos(t) = 12/13
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