Question
Asked Dec 7, 2019
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Use the Sum Identify to evaluate EXACTLY.

Sin π ÷ 12 =

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Expert Answer

Step 1

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The trigonometric identity is sin (A +B) = sin A cos B+cos A sin B. Write sin 12 as sin 12 sin

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Step 2

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+ cos- sin 3 sin 3 = sin Cos 3 : sin (-0) = – sin 0 = sin cos 3 sin 4 + cos 4 3 and cos (-0) = cose = sin sin 4 3 cos cos 3 1 4. ||

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