Express the function as a trigonometric function of x.sin 4x
A. 1 - 8 sin2x cos2x
B. 4 sin x cos3x - 4 sin3x cos x
C. cos3x - 3 sin2x cos x
D. 3 sin x - 4 sin3x
Answer: B
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A. 216? B. 18? C. 216 D. 36?
Use lattice multiplication to determine the product.9 × 215
A. 2150 B. 1944 C. 1926 D. 1935
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