計(jì)算[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)]除[(x+2y)(x-y)/(x^2+2xy^2)
計(jì)算[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)]除[(x+2y)(x-y)/(x^2+2xy^2)
分式計(jì)算
分式計(jì)算
數(shù)學(xué)人氣：450 ℃時(shí)間：2019-08-22 14:33:38
優(yōu)質(zhì)解答
[4/(x^2-y^2)+(x+y)/(xy^2-x^2y)]除[(x+2y)(x-y)/(x^2y+2xy^2)=[4/(x-y)(x+y)+(x+y)/xy(y-x)]*xy/(x-y)=[(4xy-(x+y)^2)/xy(x+y)(x-y)]*xy/(x-y)=[-(x-y)^2]/xy(x+y)(x-y)]*xy/(x-y)=-(x-y)/xy(x+y)*xy/(x-y)=-1/(x+y)
我來(lái)回答
類似推薦
- 計(jì)算:(x^2+2xy+y^2)/(x^2y+xy^2)-(x^2-2xy+y^2)/(x^2y-xy^2)
- 計(jì)算:(x^3+x^2y) / (x^2-y^3) - x(x-y)/ (xy+x^2)- (2xy)/(x^2-y^2)
- 計(jì)算:4xy-(x+y)^2/xy(x+y)(x-y)÷x^2+xy-2y^2/x^2y+2xy^2
- 計(jì)算：(1)x^2-4y^2/x^2+2xy+y^2除以x+2y/x^2+xy(2)x+2y/x^2-y^2+y/y^2-x^2-2x/x^2-y^2
- 計(jì)算:(x^2-2xy)/(x^2-3xy+2y^2)-(xy+y^2)/(x^2-y^2)
- 當(dāng)x=____時(shí),代數(shù)式2分之1-x與1-3分之x-1的值相等
- 成語(yǔ),描述事情不是安照自己的意愿發(fā)展的成語(yǔ)
- 形容老鷹的詞
- 一直關(guān)于x的方程為3x+a=5-6x
- 將250ml密度為1.05g/cm3的質(zhì)量分?jǐn)?shù)為14%的硫酸跟足量的鐵屑充分反應(yīng),求
- 根據(jù)所學(xué)知識(shí)對(duì)對(duì)聯(lián)
- 線性代數(shù)：如果n階矩陣A中的所有元素都是1,求出A的所有特征值,并求出A的屬于特征值λ=n的特征向量?
猜你喜歡
- 1Newton proved that it is ______ the moon is pulled out of a straight path and kept in orbit.
- 2i don,t think it will rain tomorrow,----- ------?
- 3甲.乙兩地相距81千米,小林和小明同時(shí)從兩地騎車相向而行,小林每小時(shí)行10千米,3小時(shí)后兩人相遇.`1`1`1
- 4《床頭上的標(biāo)簽》中李比希為什么懊悔莫及?
- 5英語(yǔ)翻譯
- 6七年級(jí)課課大考卷數(shù)學(xué)答案
- 7你根本不健康,所以你必須改變你的飲食的英文是什么?
- 8英語(yǔ)翻譯
- 9已知數(shù)列{an}中,an=4^n-14*2^n-20,n∈N*
- 10A、那樣丑的臉,那樣長(zhǎng)的牙,那樣安靜的態(tài)度.他們咀嚼的時(shí)候,上牙和下牙交錯(cuò)地磨來(lái)磨去,大鼻孔里冒著熱氣,白沫子粘在胡須上.（駱駝）
- 11有關(guān)“美就在你身邊”的名言
- 12如果1998某人的年齡等于他出生的公元年數(shù)的數(shù)字之和,那么1980年他的年齡是?歲?