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AP Calculus

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The sum of the two bases and the altitude of a trapezoid is 16ft. a) Define the area A of the trapezoid as function of its altitude. b) Find the altitude for which the trapezoid has the largest possible are. (Optimization)

  • AP Calculus -

    a+b+h=16

    Area= h(a+b)/2= h(16-h)/2
    dA/dh=0= ... you do it and solve.

  • AP Calculus -

    dA/dh=(2)(1)(-1)-(h(16-h))(0)/4

    dA/dh = -2

    is this right?

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