1g500+1g8/5-1/21g64+50(1g - 知识问答

1g500+1g8/5-1/21g64+50(1g2+1g5)的平方

3个回答

lg500+lg8/5—0.5lg64+50(lg2+lg5)²
=lg500*8/5—lg√64+50(lg2*5)²
=lg800—lg8+50(lg10)^2
=lg800/8+50(1)^2
=lg100+50
=2+50
=52

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