Graph the Expression on Each Side of the Equals Symbol $$\sqrt { \frac { 1 + \cos 26 ^ { \circ } } { 2 } }$$

question 40

Multiple Choice

Graph the expression on each side of the equals symbol to determine whether the equation might be an identity.
- $$\sqrt { \frac { 1 + \cos 26 ^ { \circ } } { 2 } }$$

• A) \(\sin 13 ^ { \circ }\)
• B) \(\cot 13 ^ { \circ }\)
• C) \(\tan 13 ^ { \circ }\)
• D) \(\cos 13\)

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Definitions:

Sensorimotor Stage

The first stage in Piaget's theory of cognitive development, from birth to about 2 years, where infants learn about the world through their senses and actions.

Cognitive Development

The process of growth and change in intellectual capabilities which influence a person's behavior and learning ability.

Mirror Neurons

Neurons that fire both when an individual acts and when the individual observes the same action performed by another, thus playing a role in learning, empathy, and understanding others' intentions.

Motor Act

Physical actions or movements controlled by the muscle system and directed by the brain.