因?yàn)?x-1)^2>=0
展開得：x^2+1>=2x
所以2x/(x^2+1)=0,得：2x>=-(x^2+1),所以2x/(x^2+1)>=-1,當(dāng)x=-1時最小
因此y的極大值為1,極小值為-1
求函數(shù)y=2x/x^2+1的極大值和極小值
求函數(shù)y=2x/x^2+1的極大值和極小值
數(shù)學(xué)人氣：636 ℃時間：2020-04-09 05:26:32
優(yōu)質(zhì)解答
我來回答
類似推薦
- 函數(shù)y=2x/x^2+1的極大值為______ 極小值為________
- 求函數(shù)y=2x+1/x^2的極大值和極小值
- 函數(shù)y=2x/1+x^2,則:A.有極小值-2,且有極大值2 B.有極小值-1,且有極大值1 [急]
- 求函數(shù)y=2x^3-3x^2的極大值與極小值
- 函數(shù)y=x2x?1的極大值與極小值的差是_．
- 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