Question

. The value of ${\cos }^{-1}(\cos 12)-{\sin }^{-1}(\sin 14)$ is

• A. $-2$
• B. $8\pi -26$
• C. $4\pi +2$
• D. None of these

Answer 1

Answer: (A)

Given, ${\cos }^{-1}(\cos 12)-{\sin }^{-1}(\sin 14)$
$=12-14=-2$