Question: Use a half-angle identity s in open parentheses theta over 2 close parentheses equals plus-or-minus square root of fraction numerator 1 minus cos theta over

Use a half-angle identity s in open parentheses theta over 2 close parentheses equals plus-or-minus square root of fraction numerator 1 minus cos theta over denominator 2 end fraction end root to find the exact value of sin open parentheses fraction numerator 7 straight pi over denominator 12 end fraction close parentheses

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