Use the product rule to find the derivative of each of the following:
(a) y = x+(1+x)'
(b) y = (2x + 3)(4x2 - 1)
(c) y = Vx (x2 + 3x - 2)2
(d) y = x(x + 1)(x2 - 4)
(e) y = (1+x)(x - 2)2
(f) y = (1 + x)(2 + x)(3+x).
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