integral[x sqrt(1 + cos(2x)), 0, π / 2]

truvest86 shared this problem 6 months ago
Solved

integral[x sqrt(1 + cos(2x)), 0, π / 2] ≒ 0.81

geogebra 5.0.472.0-d is -sqrt(2)

Comments (2)

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1

It's a bug both in v.5 and v.6 thank you. The result should be sqrt(2)

In CAS View of v.5 it gives a different answer. (the attached file is made with v.5)

The antiderivative of the integrand is


sqrt(1 + cos(2 x)) (1 + x tan(x))

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Thanks, fixed for v473

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