Mht Cet
Inverse Trigonometric Functions
MHT CET 2025 25th April Morning Shift
MCQ+2 / -02025
The principal value of $\cos ^{-1}\left[\frac{1}{\sqrt{2}}\left(\cos \frac{9 \pi}{10}-\sin \frac{9 \pi}{10}\right)\right]$ is
Mht Cet
MHT CET 2025 25th April Morning Shift
The principal value of $\cos ^{-1}\left[\frac{1}{\sqrt{2}}\left(\cos \frac{9 \pi}{10}-\sin \frac{9 \pi}{10}\right)\right]$ is