Find All Solutions of the Following Equation in the Interval $\pi$

question 239

Multiple Choice

Find all solutions of the following equation in the interval [0, 2 $\pi$ ) .
$\sin ^ { 3 } x = \sin x$

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Definitions:

Coracobrachial

A muscle in the shoulder that helps in flexing and adducting the arm.

Biceps Brachii

A muscle of the upper arm that acts to flex the elbow and supinate the forearm.

Musculocutaneous Nerve

A nerve in the arm that innervates the biceps brachii, brachialis, and part of the brachioradialis, providing both motor and sensory functions.

Brachial Plexus

A network of nerve fibers that runs from the spine through the neck, shoulder, arm, and hand, controlling muscle movements and sensations in these areas.