BC ONLY- If f (x) = x^4 − 4x^3 + 4x^2 − 1, then the set of values of x for which the derivative equals zero is
(A) {1,2}
(B) {0,−1,−2}
(C) {−1, + 2}
(D) {0}
(E) {0,1,2} - If f (x) = then f ′′(4) is equal to
(A) −32
(B) −16
(C) −4
(D) −2
(E) - If f (x) = ln x^3 then f ′′(3) is
(A)
(B) −1
(C) −3
(D) 1
(E) none of these - If a point moves on the curve x^2 + y^2 = 25, then, at (0,5), is
(A) 0
(B)
(C) −5
(D)
(E) nonexistent- If x = t^2 − 1 and y = t^4 − 2t^3 , then, when t = 1, is
(A) 1
(B) −1