Use a Double-Angle Formula or Half-Angle Formula to Simplify $\frac { \sin 48 ^ { \circ } } { 1 + \cos 48 ^ { \circ } }$

question 74

Short Answer

Use a double-angle formula or half-angle formula to simplify $\frac { \sin 48 ^ { \circ } } { 1 + \cos 48 ^ { \circ } }$ .

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Definitions:

Puzzle Boxes

Apparatuses used in psychological and animal behavioral experiments where subjects must solve a problem or manipulate mechanisms to escape or obtain a reward.

Thorndike

An influential American psychologist who developed the law of effect, which suggests that behaviors followed by satisfying consequences tend to be repeated, while those followed by unpleasant consequences are less likely to be repeated.

Reinforcements

In psychology, stimuli or events that increase the likelihood of a behavior being repeated.

Operant Conditioning

A teaching technique that involves changing the level of a behavior by applying rewards or punishments.