log3(x-1)=log9(x-5) 求x
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log3(x-1)=log9(x-5)求xlog3(x-1)=log9(x-5)求xlog3(x-1)=log9(x-5)求x对数有意义,x-1>0x-5>0,解得x>5log3(x-1)=log9(
log3(x-1)=log9(x-5) 求x
log3(x-1)=log9(x-5) 求x
log3(x-1)=log9(x-5) 求x
对数有意义,x-1>0 x-5>0,解得x>5
log3(x-1)=log9(x-5)
log9(x-1)²=log9(x-5)
(x-1)²=x-5
整理,得
x²-3x+6=0
x²-3x+6=(x-3/2)²+15/4恒>0,方程无解.
log3(x-1)=log9(x-5) 方程无解.
x-1=(x-5)^0.5…得x=自己算
log3(x-1)=log9(x+5) 求x
log3(x-1)=log9(x-5) 求x
方程log3 (x-1)=log9 (x+5)
解方程log3^(x-1)=log9^(x+5)
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