If f(x)= \int\limits^x_0 cos(t^2)dt for -2.5≤x≤2.5, on which interval is f increasing?
1 answer:
Answer:
C
Step-by-step explanation:
It will be increasing when
cos(x²) > 0
cos is positive:
[0, pi/2]
0 < x² < pi/2
-sqrt(pi/2) < x < sqrt(pi/2)
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