MathDB

592

Part of 2010 Today's Calculation Of Integral

Problems(1)

Today's calculation of Integral 592

Source:

4/12/2010
Prove the following inequality. \frac{\sqrt{2}}{4}\minus{}\frac 12\minus{}\frac 14\ln 2<\int_0^{\frac{\pi}{4}} \ln \cos x\ dx<\frac 38\pi\plus{}\frac 12\minus{}\ln \ (3\plus{}2\sqrt{2})
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