t=log3底x
2t^2+t-1=0
t=1或-2
取t=1
即log3底x=1
x=3
解方程2(log3底x)的平方+log3底x-1=0
解方程2(log3底x)的平方+log3底x-1=0
各位大哥大姐快
各位大哥大姐快
數(shù)學(xué)人氣:265 ℃時間:2020-05-20 06:27:14
優(yōu)質(zhì)解答
我來回答
類似推薦
- 解方程 log3 (3^x-1)*log3(3^(x-1)-1/3)=2
- 解方程log3^(x-1)=log9^(x+5)
- 方程2^(log3為底x的對數(shù))=1/4的解是?
- 解方程x的平方+(x+1)的平方-(x+2)的平方=(x+1)(x+2)
- 解方程log7[log3(x)]=-1
- 函數(shù)f(x)=sinx-cosx^2的最小值是?
- 英語翻譯
- I took my grandpa to the hospital this morning,_____ I missed the first class.
- So crazy
- 方差是各個數(shù)據(jù)與平均數(shù)之差的平方的平均數(shù)
- 函數(shù)y=f(x)與它反函數(shù)y=f^-1(x)怎么讀?
- These are photos of my families.Look at them 改錯
猜你喜歡
- 1平面與平面重合,是否屬于平行一類?那重合的兩直線,也屬于平行一類的嗎?
- 2非洲每年因饑餓死亡的人數(shù)及現(xiàn)在饑餓人口數(shù)量拜托各位了 3Q
- 3decide to do sth.還=什么
- 4(7/8)o you think of london?B:5.____london is one of the liveliest cities
- 5啤酒可以托運(yùn)嗎
- 6邊長為2√6的等邊三角形的中心到一邊的距離為?
- 7please give your hand to help me
- 8已知2的X次方等于3的Y次方等于6的Z次方不等等于1,證明X分之一加Y分之一等于Z分之一.
- 9幫我做做?
- 10機(jī)械分析天平TG628A的使用說明書
- 11in winter ,we wear warm coats to protect our bodies_.
- 12( )was most importance to her ,she told me,was her family it this what as