Barrons AP Calculus

(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