Evaluate the Given Quantity, but Do Not Use a Calculator $\cos ^ { - 1 } \left( - \frac { 1 } { 2 } \right)$

question 10

Multiple Choice

Evaluate the given quantity, but do not use a calculator or table. $\cos ^ { - 1 } \left( - \frac { 1 } { 2 } \right)$

• A) π
• B) \(\frac { \pi } { 2 }\)
• C) 0
• D) \(\frac { \pi } { 3 }\)
• E) \(\frac { 2 \pi } { 3 }\)

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Definitions:

Dendrites

The branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the body, or soma, of the neuron.

Neurons

Specialized cells in the nervous system that transmit information through electrical and chemical signals.

Neonates

Infants, especially in the first four weeks after birth, highlighting the very early stages of childhood development.

Torsos

The central part of the human body that extends from the neck to the lower abdomen, excluding the limbs and head.