Mathematics Crushers

If p and q are two non-zero numbers and 18(p+q) = (18+p)q, which of the following must be true?

A. q = 18

B. p = 18

C. p < 1

D. q < 1

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Find the derivative of:

y = sin²(5x)

A) 2 sin 5x

B) 10 cos 5x

C) 20 sin 5x cos 5x

D) 2 sin 5x cos 5x

E) None of the above

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