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Find the Exact Value of the Given Expression Using a Sum

Question 63

Multiple Choice

Find the exact value of the given expression using a sum or difference formula. sin285\sin 285 ^ { \circ }


A) (3+1) (22) 8\frac { ( \sqrt { 3 } + 1 ) ( 2 \sqrt { 2 } ) } { 8 }
B) (31) (22) 8\frac { ( - \sqrt { 3 } - 1 ) ( 2 \sqrt { 2 } ) } { 8 }
C) (31) (22) 8\frac { ( \sqrt { 3 } - 1 ) ( 2 \sqrt { 2 } ) } { 8 }
D) (3+1) (22) 8\frac { ( - \sqrt { 3 } + 1 ) ( 2 \sqrt { 2 } ) } { 8 }

Correct Answer:

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