Find the inverse of the following one-to-one function.f(x) = 7x - 4
A. f-1(x) = 
B. f-1(x) = 
+ 4
C. f-1(x) = 
D. Not invertible
Answer: C
Mathematics
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Find the first few nonzero terms of the Maclaurin series for the given function.f(x) = sin2 x
A. x2 - 2x4 + 
x6 - . . .
B. x2 - 
x4 + 
x6 - . . .
C. x2 + 
x4 + 
x6 - . . .
D. x2 + 8x4 + 32x6 - . . .
Mathematics
Solve the problem.Calculate 
, where R ={(x, y): 0 ? x ? 1, 0 ? y ? 1}. (Hint: This integral represents the volume of a certain solid. Calculuate its volume from elementary principles.)
A. 7.5 B. 6.5 C. 7 D. 14
Mathematics
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. - 
D. 
Mathematics
Write the fraction in simplest form. Assume that all variable factors in the denominator are not equal to zero.- 
A. -1
B. - 
C. - 
D. - 
Mathematics