SOLUTION: Find cos theta/2 if tan theta= 2/7 and theta is in Quadrant III. Give an exact answer

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Question 617850: Find cos theta/2 if tan theta= 2/7 and theta is in Quadrant III. Give an exact answer
Answer by IFY(62) About Me  (Show Source):
You can put this solution on YOUR website!

COS THETA / 2 = ?
TAN THETA = 2 /7 ON THE THIRD QUADRANT.

USING PYTHAGORAS THEOREM COS THETA = 7 / SQRT 53
7 / SQRT 53 / 2 = 0.48076..........



DATZ THE ANSWER.............