As an exercise for n 5 see if you would get 04631

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As an exercise, for n = 5 , see if you would get 0.4631 using trapezoidal method for + 5 . 0 0 2 1 x dx . Using MapleSoft, the answer is as shown on the right. Note that the exact answer is 4636 . 0 tan 1 1 5 . 0 0 2 = = + x x dx
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