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Find the Exact Value of the Expression If θ = g(θ)=cos⁡θg ( \theta ) = \cos \theta \quad

Question 117

Multiple Choice

Find the exact value of the expression if θ = 45°. Do not use a calculator.
- g(θ) =cos⁡θg ( \theta ) = \cos \theta \quad Find [g(θ) ]2[ g ( \theta ) ] ^ { 2 } .


A) 12\frac { 1 } { 2 }
B) 2\sqrt { 2 }
C) 2
D) −22- \frac { \sqrt { 2 } } { 2 }

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