计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
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计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
换底公式
=(lg5/lg9+lg5/lg3)(lg3/lg25+lg9/lg125)
=(lg5/2lg3+lg5/lg3)(lg3/2lg5+2lg3/3lg5)
=(1/2+1)*lg5/lg3*(1/2+2/3)*(lg3/lg5
约分
=(3/2)(7/6)
=7/4
计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
计算:log5乘log8乘log9分之116 3 5
log3 5-log3 15+1/2log9 27 的值
计算:-5log9^4+log3^32/9-5log5^3-(1/64)^-2/3
|log3(5)-2|+log9(25)+(1/32)^1/5
方程log3 (x-1)=log9 (x+5)
解方程log3^(x-1)=log9^(x+5)
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log9(45)-log9(5)
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log 243÷log9 =log3^5÷log3^2 =log3^5-log3^2 然后怎么写
计算(log4 3+ log8 3)(log3 2+ log9 2)-- log1/2 32^(1/3)+5^(log259)
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已知log3(4)=a,log3(5)=b 则log9(16/25)=