Comparing aa and 2b2b

Problem

Positive real numbers a,ba, b satisfy

2a+log2a=4b+2log4b.2^a + \log_2 a = 4^b + 2\log_4 b.

Compare aa and 2b2b, with proof.

Answer

Solution

Difficulty6/10
Topicsfunctions, Monotonicity, Logarithms, inequality

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