1=1\'))HAVING1269=3645AND((\'YHrT\'=\'YHrT
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(1)125*36-3603.6/36=4500-100.1=4399.9(2)1/12+1/20+1/30+1/42+1/56+1/72+1/90=210/2520+126/2520+84/2520+60/2520+45/2520+35/
(1-25%x)=3675%x=36x=48再问:比例
原式=120*(18%/36%)*1/3=120*(1/2)*1/3=20
解36(1-x)²=25∴(1-x)²=25/36∴1-x=±5/6∴x=11/6或x=1/6
25(x+1)2-36=025(x+1)2=36(x+1)2=36/25两边开平方得:x+1=±6/5x=1/5或者x=-11/5
x+5%1=36x+0.05=36x=36-0.05x=35.95
x-1/7x*4=36x-4/7x=363/7x=36x=84
两边同乘以836-4a=8移项4a=36-84a=28两边同除以4a=28÷4a=7
X=36/75%=48
[1-1/(15/8)]x=36,(1-8/15)x=36,(7/15)x=36,x=540/7=77又(1/7).
(1-1/8+1/5)x=36(7/8+1/5)x=3643x/40=36x=1440/43
36*28*73*36-36=(28+73)*36-36=(101-1)*36=3600是不是抄错题了,应该是36*28+73*36-36可以这样理36*28可看作28个36,73*36可看作73个36.所以,此题的意思即为28个36+73
假设A11,B136C1=round(a1*b1,0)结果36假设A21,B23.6C1=round(a2*b2,0)结果4
X*(1+1/2)=36x×3/2=36x=36÷3/2x=24
(1/2)x(x-1)=36x(x-1)=72x^2-x-72=0(x+8)(x-9)=0x+8=0x=-8x-9=0x=9x=-8或x=9
144/17楼主的问题写错了吧,不能是这么简单吧?
规律略原式=2*(1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/110)=2*(1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8-1/9+1/9-1/
换底公式:a=log(3)36=log(36)36/log(36)3=1/1og(36)3所以1/a=log(36)3再问:那1/log(3)36是否等于log(3)36的-1次方再答:是,好比1/2是2的-1次方。再问:比如log(x)2
1、25(x-1)^2-36=0(x-1)²=36/25∴x-1=6/5x-1=-6/5∴x=11/5x=-1/52、2(x-1)^3=54(x-1)³=27x-1=3∴x=4