Barrons AP Calculus - David Bock

(D)

(E)

48. If x = 4 cos θ and y = 3 sin θ, then is equivalent to
    (A)
    (B)
    (C)
    (D)
    (E)


49. A curve is defined by the parametric equations x = 2a tan θ and y = 2a cos^2 θ, where 0 θ
    π. Then the definite integral is equivalent to
    (A)
    (B)
    (C)
    (D)
    (E)

BC ONLY

50. A curve is given parametrically by x = 1 − cos t and y = t − sin t, where 0 t π. Then
    is equivalent to
    (A)
    (B)
    (C)
    (D)
    (E)

BC ONLY

51. When is estimated using n = 5 subintervals of equal width, which is (are) true?