log1/3 x/2=log3 (x-1)的解是 log1/3 x/2=llog1/3 x/2=log3 (x-1)的解是log1/3 x/2=log3 (x-1)这步怎么变成下部,不要说倒数什么的,log3 2/x =log3 (x-1)2/x=x-1x²-x=2x²-x-2=0(x+1)(x-2)=0x=-1或x=2但真数x/2>0,x-1>
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log1/3x/2=log3(x-1)的解是log1/3x/2=llog1/3x/2=log3(x-1)的解是log1/3x/2=log3(x-1)这步怎么变成下部,不要说倒数什么的,log32/x=
log1/3 x/2=log3 (x-1)的解是 log1/3 x/2=llog1/3 x/2=log3 (x-1)的解是log1/3 x/2=log3 (x-1)这步怎么变成下部,不要说倒数什么的,log3 2/x =log3 (x-1)2/x=x-1x²-x=2x²-x-2=0(x+1)(x-2)=0x=-1或x=2但真数x/2>0,x-1>
log1/3 x/2=log3 (x-1)的解是 log1/3 x/2=l
log1/3 x/2=log3 (x-1)的解是
log1/3 x/2=log3 (x-1)这步怎么变成下部,不要说倒数什么的,
log3 2/x =log3 (x-1)
2/x=x-1
x²-x=2
x²-x-2=0
(x+1)(x-2)=0
x=-1或x=2
但真数x/2>0,x-1>0
所以
x=2
log1/3 x/2=log3 (x-1)的解是 log1/3 x/2=llog1/3 x/2=log3 (x-1)的解是log1/3 x/2=log3 (x-1)这步怎么变成下部,不要说倒数什么的,log3 2/x =log3 (x-1)2/x=x-1x²-x=2x²-x-2=0(x+1)(x-2)=0x=-1或x=2但真数x/2>0,x-1>
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log1/3 x/2=log3 (x-1)的解是 log1/3 x/2=llog1/3 x/2=log3 (x-1)的解是log1/3 x/2=log3 (x-1)这步怎么变成下部,不要说倒数什么的,log3 2/x =log3 (x-1)2/x=x-1x²-x=2x²-x-2=0(x+1)(x-2)=0x=-1或x=2但真数x/2>0,x-1>
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