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数学
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2log3底2-log3底32/9+log3底8
(9/4)^1/2-(-9.6)^0-(27/8)^-2/3+(1.5)^-2求值
人气:317 ℃ 时间:2020-04-13 19:00:15
解答
(1).2log₃2-log₃(32/9)+log₃8=2log₃2-(5log₃2-2)+3log₃2=2(2).(9/4)^1/2-(-9.6)^0-(27/8)^(-2/3)+(1.5)^(-2 )=(3/2)-1-(4/9)+(4/9)=1/2
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