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5-46.
  1. Let f(x) = x2 + 3x and g(x) = sin x. Match the expression in the left-hand column with its simplification in the right-hand column. Homework Help ✎

  2. a.

    f ′ (g(x))

    A.

    sin2 x + 3 sin x

    b.

    f(g(x))

    B.

    cos(x2 + 3x)

    c.

    g(f(x))

    C.

    2 sin x + 3

    d.

    g′ (f(x))

    D.

    sin(x2 + 3x)

Before beginning, find f '(x) and g'(x).