Simplify the expression. Assume that all variables are positive when they appear.
A. x
B.
C. 16x
D.
Answer: D
Mathematics
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Evaluate the integral.
A. sin-1
+ C
B. (2x + 2) ln + C
C. tan-1
+ C
D. 3 tan-1 + C
Mathematics
Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = x2 + 7x - 2; f '(0)
A. f '(x) = x + 7; f '(0) = 7 B. f '(x) = 2x + 7; f '(0) = 7 C. f '(x) = 2x - 2; f '(0) = - 2 D. f '(x) = 2x; f '(0) = 0
Mathematics
Simplify.
A. -(x + 4) B. -(x - 4) C. 4x(x + 4) D. x + 4
Mathematics
Divide and express the result in standard form.
A. 4 - 2i
B. +
i
C. -
i
D. 4 + 2i
Mathematics