SOLUTION: Find the exact values of sin(u/2),cos(u/2),tan(u/2)using the half-angle formulas. cos u = 3/5, 0<u<pi/2

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Question 773393: Find the exact values of sin(u/2),cos(u/2),tan(u/2)using the half-angle formulas.
cos u = 3/5, 0
Answer by lwsshak3(11628) About Me  (Show Source):
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Find the exact values of sin(u/2),cos(u/2),tan(u/2)using the half-angle formulas.
cos u = 3/5, 0 ***
You are working with a 3-4-5 reference right triangle in quadrant I
sin u=4/5