5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
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5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
=5*log3 (2^2)/log3 (3^2)+log3 (2^5)-log3(3^2)-3-2^4
=5* log3 2 +5*log3 2-2-3-16
=10*(log3 2)-21
说明:换底公式:logab=logcb/logca,
幕的性质:a的loga的m次方=m;
(1/64)的-2/3次方=(1/2)的6次方的-2/3次方
=(1/2)的6*(-2/3)次方
=(1/2)的-4次方
=2的4次方.
-5log9 4+log3 32/9-5^log5 3-(1/64)^-2/3
计算:-5log9^4+log3^32/9-5log5^3-(1/64)^-2/3
log3*2/log9*4
5log9 4 + log3 32/9 - 5的log5 3次方 - (1/64)的-2/3次方
-5log9(4)+log3(32/9)-(1/64)^(-2/3),怎么化简,要步骤谢谢.RT
化简(log3 4)/(log9 8)
log3*2/log9*4=?
|log3(5)-2|+log9(25)+(1/32)^1/5
计算[log9(5)+log3(5)]乘[log25(3)+log125(9)]
为什么log9 (9/2)=log3(81/4)
(log2(3)+log8(9))x(log3(4)+log9(8)+log3(2))
求(log2^3+log8^9)(log3^4+log9^8+log3^2)的值
已知log3(4)=a,log3(5)=b 则log9(16/25)=
已知log3(4)=a,log3(5)=b 则log9(16/25)=
-5log9为底4的对数+log3为底(32/9)的对数-5^(log5为底3的对数)-(1/64)^(-2/3)
4log9为底 2的对数-log3为底 32/9的对数+log3为底 8的对数-5的2倍log以5为底3的对数 =多少?
(log4 3+log8 3)(log3 2+log9 2)-log1/2 32^1/3+5^(log25 9)
log3 5-log3 15+1/2log9 27 的值