Use a Double-Angle Formula to Rewrite the Expression

question 37

Multiple Choice

Use a double-angle formula to rewrite the expression. ​
2 sin² x - 1
​

• A)cos x
• B)cos 2x ​
• C)-2 cos x ​
• D)2 cos 2x ​
• E)- cos 2x ​

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Definitions:

Urine Production

The physiological process by which kidneys filter blood to remove waste products and excess substances, resulting in the formation of urine.

Micturition Reflex

A reflex leading to the urge to urinate, initiated by the stretching of the bladder.

Urinary Bladder

A muscular sac in the pelvis that stores urine from the kidneys before it is excreted out of the body through urination.

External Urinary Sphincter

A muscular mechanism that controls the retention and release of urine from the bladder.