Question

Calculus 2: Area Between Two Curves
Find the area of the region enclosed by the given curves:
y = 6cos(7x), y=6sin(14x), x = 0, x = pi/14
My answer was 15/7, but the correct answer is 3/7. I don't know where I went wrong, but I think it's where I took the integral to calculate the area. Please provide detailed steps. Thanks.

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