Determine the Signs of the Given Trigonometric Functions of an Angle

question 146

Multiple Choice

Determine the signs of the given trigonometric functions of an angle in standard position with the given measure.
- $\cos \left( - 305 ^ { \circ } \right)$ and $\sin \left( - 305 ^ { \circ } \right)$

• A) positive and positive
• B) negative and negative
• C) negative and positive
• D) positive and negative

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Definitions:

Electrically Neutral

A condition where an object or system has an equal number of positive and negative charges, leading to no net electrical charge.

Depolarization

A reversal in the electrical potential across a cell's plasma membrane, leading to the initiation of an action potential or nerve impulse.

Sodium Ions

Positively charged atoms of sodium, crucial for maintaining fluid balance and transmitting nerve impulses in the body.

Potassium Ions

Electrolytes with a positive charge found inside and outside of cells, essential for maintaining normal cell function including nerve impulse transmission and muscle contraction.