e integrand in the problem da can be re written as a product like this 2 dx apply integration by parts we can let u x and dv en

Question

e integrand in the problem da can be re written as a product like this 2 dx apply integration by parts we can let u x and dv en du 1dx and v arctan hat are the next steps for trying the integration by parts technique here 1 z 1 2 dr uv fv du z arctan z 1 de arctanz r C uv fv du z arctanz farctan z dz Stop here and try a different approach because we don t have a good way to antidifferentiate arct

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