I did the first part already, by letting u = ax => dx = du/a, then just substituting in the values. How do i explain why its negative?
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Originally Posted by gomes I did the first part already, by letting u = ax => dx = du/a, then just substituting in the values. How do i explain why its negative? For x > 0, . Take reciprocals to get . So the integrand is always negative and hence so is the integral.
Originally Posted by Opalg For x > 0, . Take reciprocals to get . So the integrand is always negative and hence so is the integral. Thanks
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