Question: 9. Evaluate the exact value of sin 111: by using a proper compound angle formula 117t 9. Evaluate the exact value of sin by using

117t 9. Evaluate the exact value of sin by using a proper

compound angle formula. 12

9. Evaluate the exact value of sin 111: by using a proper compound angle formula

117t 9. Evaluate the exact value of sin by using a proper compound angle formula. 12

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