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Mth 174

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** Question Form_labelMessages **

Integral Approx. - Trapezoidal

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I do not have a graphing calculator so I cannot use the DERIVE command to get the approximations of the actual integral. Is there any way I can obtain the values without a graphing calculator to do these problems,such as the example in Class Notes #12?

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I searched for applications and located the following:

http://nastyaccident.com/calculators/calculus/trapezoidalRule

For example to evaluate x^2 sin(x) between x = 0 and x = pi, the function I entered was typed in as x^2 sin(x) and the numbers I entered were 0 and 3.14. I entered 5 as the value for n.

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