SOLUTION: If U is an acute angle in quadrant 1 and the cosine of U is 1/2 what is the sin of U?

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Question 769967: If U is an acute angle in quadrant 1 and the cosine of U is 1/2 what is the sin of U?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

U is an acute angle in quadrant I and
the cos%28U%29=1%2F2 => U=60°
cos%2860%29=1%2F2
then the
sin%2860%29=sqrt%283%29%2F2