Use sum-to-product identities to rewrite the expression as a product.cos 9? - cos 3?
A. -2 sin 6x sin 3x
B. -2 cos 6x sin 3x
C. 2 cos 6x cos 3x
D. 2 cos 3x
Answer: A
Mathematics
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x ÚÄÄÄ Ä = û625 4 a. 100 b. 25 c. 50 d. 79 e. 90
Mathematics
Use a vertical format to find the product.4y3 + 8y2 + 3y + 5
A. 8y4 + 12y3 + 40y2 + 15y + 25 B. 8y4 + 28y3 + 30y2 + 19y + 15 C. 28y4 + 28y3 + 40y2 + 15y D. 28y4 + 40y3 + 15y2 + 25y
Mathematics
Solve the problem.A circle has a circumference of 32? m. Find the radius of the circle. (C = 2?r = ?d)
A. 16 m B. 32 m C. 5 m D. 8 m
Mathematics
Establish the identity.csc(u + v) = 
What will be an ideal response?
Mathematics