Subject GRE-Style: Improper Integral Evaluation

GRE Math Subject · Axiom Academy

EXAMPLE GRE-Style Improper Integral Evaluation Since we have an infinite upper limit: Let u = x^2 + 1 , so du = 2x dx , and . GRE Insight: Improper integrals require finding an antiderivative first, then taking a limit. The substitution often simplifies the problem dramatically.

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