Question

If ${\sin }^{-1}\sin 17+{\cos }^{-1}\cos 27+{\tan }^{-1}\tan 37$ is equal to $k-\lambda \pi$ then find $k+\lambda$

Answer 1

Answer: 62.00

${\sin }^{-1}\sin 17=5\pi -17$
${\cos }^{-1}\cos 27=27-8\pi$
${\tan }^{-1}\tan 37=37-12\pi$
$=47-15\pi$