SOLUTION: if sin theta = - 5/13 and theta lies in quadrant 4 what is the value of cos theta

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Question 857597: if sin theta = - 5/13 and theta lies in quadrant 4 what is the value of cos theta
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
In quadrant 4, the sin is negative
and the cos is positive
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+cos%28+theta+%29+=+sqrt%28+13%5E2+-+5%5E2+%29+%2F+13+
+cos%28+theta+%29+=+sqrt%28+169+-+25+%29+%2F+13+
+cos%28+theta+%29+=+sqrt%28+144+%29+%2F+13+
+cos%28+theta+%29+=+12%2F13+