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log2 3=x,log3 2√6/3=y,则x+2y的值为
人气：420 ℃　时间：2020-04-23 15:31:05
解答
x+2y=log2 (3) + 2 log2 (2√6/3)
=log2 (3) + log2 (2√6/3)²
=log2 (3) + log2 (8/3)
=log2 (3* 8/3)
=log2 (8)
=3
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