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# ASAP

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Use the product-to-sum (NOT SUM-TO-PRODUCT) formulas to write the given expression as a product.

$$12\sin\frac{\pi}{6}\sin\frac{\pi}{6}$$

A. $$-6\sin\frac{\pi}{12}$$

B. $$6\sin\frac{\pi}{6}+6\cos\frac{\pi}{6}$$

C. $$6-6\cos\frac{\pi}{12}$$

D. $$6+6\cos\frac{\pi}{12}$$

Jan 13, 2021

#1
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sinasinb = 1/2 [cos ( a-b) -cos(a+b)]

= 1/2 * 12   ( cos 0 - cos pi/3)

6  - 6 cos pi/3                            <============== Don't see that as an answer ....they MIGHT have intended  C.

Jan 13, 2021