Find the exact value of the expression. Do not use a calculator.- 
A. -1
B. 1
C. 0
D. undefined
Answer: A
Mathematics
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Find the derivative.f(x) = sin 4e2x
A. e2x cos 4e2x B. -8e2x cos 4e2x C. cos 4e2x D. 8e2x cos 4e2x
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Provide an appropriate response.What does the graph of the equation 
look like?
A. The y-axis B. The xy-plane C. The z-axis D. The yz-plane
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Find the area bounded by the given curves.x = 0, x = 1, y = x2 + 6, y = x2 + 2
A. 12 B. 16 C. 8 D. 4
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