Barrons AP Calculus - David Bock

(B)

(C) 1

(D) 2

(E) none of these
In each of Questions 53–56 a pair of equations that represent a curve parametrically is given.
Choose the alternative that is the derivative

53. x = t − sin t and y = 1 − cos t
    (A)
    (B)
    (C)
    (D)
    (E)

BC ONLY

54. x = cos^3 θ and y = sin^3 θ
    (A) tan^3 θ
    (B) −cot θ
    (C) cot θ
    (D) −tan θ
    (E) −tan^2 θ
    BC ONLY


55. x = 1 − e−t and y = t + e−t
    (A)
    (B) e−t − 1
    (C) et + 1
    (D) et − e−2t
    (E) et − 1


56. and y = 1 − ln(1 − t) (t < 1)