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Use an addition or subtraction formula to find the exact value of sin(19/12π)=−A√(B√+1)/4 .

Use an addition or subtraction formula to find the exact value of sin(19/12π)=−A√(B√+1)/4 .
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Use an addition or subtraction formula to find the exact value of sin(19/12π)=−A√(B√+1)/4
.

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User Harry Stevens
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Answer: sin ((19/12) π) = sin ((7 / 12 π) - (5 / 4 π)) = −√[(√6 − √2)/4] ≈ -0.9659

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User Psyx
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