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Logarithm problem 0 < log [a] 2 < log [b] 2, then the size relationship between a and B is_________ .
If the true number is greater than 1 and the logarithm is greater than 0, then the base number is greater than 1, that is, a > 1, b > 1
According to the formula of changing the bottom, it is concluded that
0＜lg2/lga＜lg2/lgb
LG is greater than LG2 for each term
0＜1/lga＜1/lgb
∴1/lga＜1/lgb
∴lga＞lgb＞0
∴a＞b
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