Factor by grouping.xy - 5yz + 7x - 35z
A. (y + 7)(x - 5z)
B. (y - 7)(x + 5z)
C. (y + 5)(x - 7z)
D. (y - 5)(x + 7z)
Answer: A
Mathematics
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A. sin x - 1 B. cos2x C. sin x D. sin x + 1
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Establish the identity.cos4 x = 
(3 + 4 cos(2x) + cos (4x))
What will be an ideal response?
Mathematics