Use the Figure to Find the Exact Value of the Trigonometric

question 41

Multiple Choice

Use the figure to find the exact value of the trigonometric function.
Cos 2 $\theta$

a = 1, b = 2

• A) \(\frac { 3 } { 4 }\)
• B) \(\frac { 3 } { 5 }\)
• C) \(\frac { 5 } { 3 }\)
• D) \(\frac { 4 } { 5 }\)
• E) \(\frac { 5 } { 4 }\)

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