作业帮log(2)5×log(5)81×log(3)4＋In√e.还有(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
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log(2)5×log(5)81×log(3)4＋In√e.还有(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
log(2)5×log(5)81×log(3)4＋In√e.
还有(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
log(2)5×log(5)81×log(3)4＋In√e.还有(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
log(2)5×log(5)81×log(3)4＋In√e
=log(2)81×log(3)4＋1/2
=4log(2)3×2log(3)2＋1/2
=8+1/2=8.5
(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
=(log(2)3＋log(2)3)(2log(3)2＋1／2log(3)2)
=2log(2)3*3/2log(3)2)
=3
换底公式的应用.
(log(2)125+log(2)25+log(8)5)*(log(125)2+log(25)4+log(5)8)
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[log(5)8]*[log(32)5]+log(9)8/log(3)2
log
log
log
求等式log(2)3*log(3)4*log（4)5*log(5)6*log(6)7*log(7)m=log(3)9时m的值?
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log(2)5×log(5)81×log(3)4＋In√e.还有(log(2)3＋log(4)9)(log(3)4＋1／2log(3)2)
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