What is the integral of $ln sec (x)$ $lnsec(x)$ ?

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What is the integral of $ln sec (x)$ $lnsec(x)$ ?

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Answer 1 · 2015-04-28T17:21:06

It is not algebraically expressible using standard functions.

(I'm beginning to wonder if this question.keeps getting asked because students think they need it to differentiate
$\int_{0}^{x} ln (sec t) d t$ $int_0^x ln (sect) dt$ .

Or maybe there are just lots of teachers who like asking questions that have no nice answer.)

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What is the integral of $ln sec (x)$ $lnsec(x)$ ?

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What is the integral of lnsec(x)lnsec(x)?

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What is the integral of $ln sec (x)$ $lnsec(x)$ ?