Integration + Limit
Calculus
Level
4
\[ \large\lim_{a\to \frac\pi2 ^-} \int_0^a \cos x \ln(\cos x) \, dx \]
If the integral above can be expressed as \( \ln c - b\), where \(b\) and \(c\) are positive integers, find \(b +c\).
by
Rishabh Deep Singh