9

Set 8: Exponential Functions (Intermediate)

Explanation

Answer: A

Which is larger: eπe^\pi or πe\pi^e?

A.

eπe^\pi (about 23.1)

✓ Correct
B.

πe\pi^e (about 22.5)

C.

They are equal

D.

Cannot determine

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Calculate both values. 1. Calculate eπe^\pi: e3.1415923.14e^{3.14159} \approx 23.14. 2. Calculate πe\pi^e: 3.141592.71822.463.14159^{2.718} \approx 22.46. 3. Comparison: 23.14>22.4623.14> 22.46, so eπ>πee^\pi > \pi^e. Strategic Tip: This is a famous inequality: eπ>πee^\pi > \pi^e. Choice B is incorrect because πe\pi^e is slightly smaller. Choice C is incorrect because they are close but not equal. Choice D is incorrect because we can calculate both.

Key Steps:

The correct answer is eπe^\pi (about 23.1)

Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.

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