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x=lg4/lg1.073=lg4/lg1.073=log1.073(4)=2log1.073(2)=?怎么计算出约等为20RT
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x=lg4/lg1.073=lg4/lg1.073=log1.073(4)=2log1.073(2)=?怎么计算出约等为20
RT
RT
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答案和解析
x=lg4/lg1.073
=2lg2/lg1.073
=2log1.073(2)
=2/log2(1.073)
log2(1.073)≈10
所以x≈20
=2lg2/lg1.073
=2log1.073(2)
=2/log2(1.073)
log2(1.073)≈10
所以x≈20
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