(E)
80.
(A)
(B)
(C)
(D)
(E)
81.
(A)
(B)
(C)
(D)
(E)
82.
(A)
(B)
(C)
(D)
(E)
83.
(A)
(B)
(C)
(D)
(E)
9
If , then the set of x’s for which f ′(x) exists is
all reals
all reals except x = 1 and x = −1
all reals except x = − 1
all reals except x = and x = −1
all reals except x = 1
BC ONLY QUESTIONS 81–83
If , then the derivative of y^2 with respect to x^2 is
1
If y = x^2 + x, then the derivative of y with respect to is
(2x + 1)(x − 1)^2
2 x + 1
none of these
If and g(x) = , then the derivative of f(g(x)) is
−(x + 1)−2