Evaluate the Cosine of the Angle Without Using a Calculator $30 ^ { \circ }$

question 10

Multiple Choice

Evaluate the cosine of the angle without using a calculator. $30 ^ { \circ }$

• A) \(\frac { \sqrt { 2 } } { 2 }\)
• B) \(- \frac { \sqrt { 2 } } { 2 }\)
• C) \(\frac { \sqrt { 3 } } { 2 }\)
• D) \(\frac { 1 } { 2 }\)
• E) 0

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Fixation

An obsessive focus or attachment to someone or something, potentially causing psychological issues.

Arrangement

The act of organizing or placing things in a specific order or pattern.

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The capacity to gain an accurate and deep intuitive understanding of a person or thing, often leading to a breakthrough or solution.

Realization

The process of becoming fully aware of something as a fact or truth; coming to an understanding or acknowledgement.