Question on: JAMB Mathematics - 2016
Evaluate (\int\limits_0^\frac{\pi}{2}) sin xdx
A
2
B
-1
C
1
D
-2
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Correct Option: C
(\int\limits_0^\frac{\pi}{2}) sin xdx = -cosx|(\frac{\pi}{2})
= -(cos(\frac{\pi}{2}) - cos0) = -(0-1) = 1
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