Question 150754: sin^2 pi/3 + cos^2 pi/3. Use identity to find of the value of the expression (no calculator): sin^2 pi/3 + cos^2 pi/3. Use identity to find of the value of the expression (no calculator) Answer by vleith(1162) (Show Source):
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sin^2(x) + cos^2(x) = 1
So what happens when x = pi/3?
