The function f is one-to-one. Find its inverse.f(x) = 3x + 7
A. f-1(x) = 
B. f-1(x) = - 
C. f(x) = 
D. f-1(x) = 
Answer: D
Mathematics
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cos3 x
A. y = u3; u = cos x; 
= 3 cos2 x sin x
B. y = cos u; u = x3; 
= - sin(x3)
C. y = u3; u = cos x; 
= - 3 cos2 x sin x
D. y = cos u; u = x3; 
= - 3x2 sin(x3)
Mathematics
Evaluate the line integral of f(x,y) along the curve C.f(x, y) = y + x, C: x2 + y2 = 36 in the first quadrant from (6, 0) to (0, 6)
A. 72 B. 144 C. 36 D. 0
Mathematics
Solve.-4c + 3 ? -17 or -4c + 3 > -5
A. (-?,?) B. (-?, -5] ? (-2, ?) C. (-?, 2) ? [5, ?) D. (2, 5]
Mathematics
Use a graphing calculator to make a conjecture as to whether each equation is an identity.(sin x + cos x)2 = 1
A. Identity B. Not an identity
Mathematics