Mathematics
Senior High

2行目の積の部分は、どう計算すれば3行目のような和の表し方になりますか😖計算過程教えてください🙇‍♀️

log₂ 10 log₂5 = (log₂2+ log₂5). = log₂ 10. - log₂5+ log₂2 +log25 log₂5 -log25- 1 log₂5 - 1 log₂5

Answers

李さま

2行目の第1項にある2つのlog₂10をlog₂2+log₂5に直せばよい。

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