What is the integral from 0 to pi/4 of ln(cos(x)) ?

The integral from 0 to pi/4 of ln(cos(x)) is -0.08641…

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integral from 0 to pi/4 of ln(cos(x))

\int_{0}^{\frac{π}{4}} ln (cos (x)) d x

- 0.08641 \dots

Solution steps

\int_{0}^{\frac{π}{4}} ln (cos (x)) d x

Evaluating using numerical calculation methods

= - 0.08641 \dots

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What is the integral from 0 to pi/4 of ln(cos(x)) ?
The integral from 0 to pi/4 of ln(cos(x)) is -0.08641…