Use the Figure to Find the Exact Value of the Trigonometric

question 16

Multiple Choice

Use the figure to find the exact value of the trigonometric function. ​
Cos 2θ​ ​
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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