Evaluate the limits given below

MATHEMATICS · Multi-part · AP · Calculus AB · Limits and Continuity · Limits and Continuity

Problem

Evaluate the limits given below. Show all the intermediate steps clearly. (i) lim⁡x→−∞x4e2x\displaystyle \lim_{x\to -\infty} x^{4}e^{2x} (ii) lim⁡x→∞x4e−2x\displaystyle \lim_{x\to \infty} x^{4}e^{-2x} (iii) Are the two limits obtained in parts (i) and (ii) equal? Give a brief reason for your answer.

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