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Answers for “应用控制收敛定理需要哪三个假设条件?”

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The example is included to demonstrate that the domination hypothesis alone is insufficient if the dominating function's integral diverges. It serves as a warning that if the finite-integral condition is not met, the desired interchange of integral and sum may fail.

Conditions: The example is presented as a warning illustration on the interval [0,∞)[0,\infty).; The function e2xe^{2x} dominates exe^x, but ∫0∞e2x dx\int_0^{\infty} e^{2x}\,dx diverges.