Find the product.-7x4(3x6 + 6x2)
A. -21x10 - 42x6
B. -21x10 + 6x2
C. -21x10 + 42x6
D. -21x2 - 42x
Answer: A
Mathematics
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A. 3
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B. 1
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Use the given triangles to evaluate the expression. Rationalize all denominators. 
cos 
A. 
B. 
C. 
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