Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §10.1 The Geometric Series, #26 · Calculus · Series

Compare the integral of … to equation (13) and find

Compare the integral of $1 + x^{2} + x^{4} + \dots$ to equation (13) and find $\int d x / (1 - x^{2})$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §10.1 The Geometric Series, #26

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