Verify That the Equation Is an Identity $$\left( \cos \frac { x } { 2 } - \sin \frac { x } { 2 } \right) ^ { 2 } = 1 - \sin x$$

question 99

Essay

Verify that the equation is an identity.
- $$\left( \cos \frac { x } { 2 } - \sin \frac { x } { 2 } \right) ^ { 2 } = 1 - \sin x$$

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Definitions:

Equilibrium Receptors

Specialized sensory receptors that help maintain balance by detecting changes in head position and motion.

Hearing Receptors

Sensory cells located in the inner ear that convert sound waves into electrical signals for the brain to interpret as sound.

Communicating Chambers

Connected spaces allowing for the transfer or exchange of fluids or gases, often used in scientific and medical contexts.

Eversion

A movement that results in the turning outward of the sole of the foot or another body part.