Asked by Eric

Evaluate the definite integral

(low) (high)
-π/6 ∫ π/6 2sec(x)tan(x) dx
Answered by Reiny
hint:
What is the derivative of secx ??
Answered by Steve
this is one of the standard trig integrals. Recall that

d/dx sec(x) = sec(x) tan(x)

The integral should now be clear.
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