Evaluate the definite integral? Integral (7 on top, 3 on bottom) of (5x-30)dx
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Evaluate the definite integral? Integral (7 on top, 3 on bottom) of (5x-30)dx

[From: ] [author: ] [Date: 11-11-12] [Hit: ]
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int(5*x - 30, x) = (5/2)*x^2 - 30*x

f(x):=5/2 x^2 - 30 x

f(7) = - 175/2

f(3) = - 135/2

- 175/2 - ( - 135/2) = - 20, answer!
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