The value of $cot^{-1}(-1)+cosec^{-1}(-\sqrt{2}) + sec^{-1} (2)$ , is
Answer & explanation
Correct answer: option 1
$cot^{-1}(-1)+cosec^{-1}(-\sqrt{2}) + sec^{-1} (2)$
$=\frac{3\pi}{4}-\frac{\pi}{4}+\frac{\pi}{3}=\frac{5\pi}{6}$
The value of $cot^{-1}(-1)+cosec^{-1}(-\sqrt{2}) + sec^{-1} (2)$ , is
Correct answer: option 1
$cot^{-1}(-1)+cosec^{-1}(-\sqrt{2}) + sec^{-1} (2)$
$=\frac{3\pi}{4}-\frac{\pi}{4}+\frac{\pi}{3}=\frac{5\pi}{6}$