3. Consider the following integral, where c is a constant: 5x dr. -2)3/2 (a) in order to simplify the integrand. State the appropriate variable change/substitution to make, along with the appropriate identity, (b) Apply the variable change and identity from part (a) to rewrite the integral. (c) Evaluate the integral in the last part and use the result to obtain the value of the original integral.

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