If f is one-to-one, find an equation for its inverse.f(x) =
, x ? 9
A. f-1(x) =
B. Not a one-to-one function
C. f-1(x) = x2 + 9, x ? 0
D. f-1(x) = (x - 9)2
Answer: C
Mathematics
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Evaluate the integral.2x dx
A. - x cot 2x +
ln
+ C
B. - x cot 2x + ln + C
C. x cot 2x -
ln
+ C
D. - 2x cot 2x + 4 ln + C
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Answer the following statement true (T) or false (F)
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Match the system of inequalities with one of the graphs.x2 + y2 < 16 y ? 1
A.
B.
C.
D.
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Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 1?
A. 0, 2?
B.
C. ,
D. none
Mathematics