Inverse Trigonometric Functions
Principal Values
Premium Question
Grade 12

Question:

The principal value of $\sin^{-1}(\cos(\sin^{-1} \frac{\sqrt{3}}{2}))$ is:
(1) $\frac{\pi}{3}$
(2) $\frac{\pi}{6}$
(3) $\frac{\pi}{4}$
(4) $\frac{\pi}{2}$

Step-by-Step Solution

Key Concept: Work inside-out: find $\sin^{-1}(\sqrt{3}/2)$, then $\cos$ of that, then $\sin^{-1}$.
The detailed step-by-step mathematical proof is available inside the Mathbee app workspace.
Correct Answer: (2)

Master Inverse Trigonometric Functions with Mathbee

Practice this topic under real exam conditions with strict timers, or ask our AI Mentor to explain the concepts step-by-step.

Start Practicing for Free