直線2x-y+1=0 與直線y=x 交點(diǎn)坐標(biāo)為P(-1,-1)
直線2x-y+1=0 關(guān)于直線y=x對(duì)稱的直線斜率為1/2 ,
所以 所求的直線方程為 x-2y-1=0
函數(shù)f（x）存在反函數(shù),且在點(diǎn)(x0,f(x0)）處得切線方程為2x-y+1=0,則反函數(shù)在這點(diǎn)（f(x0),x0）處得切線
函數(shù)f（x）存在反函數(shù),且在點(diǎn)(x0,f(x0)）處得切線方程為2x-y+1=0,則反函數(shù)在這點(diǎn)（f(x0),x0）處得切線
數(shù)學(xué)人氣：743 ℃時(shí)間：2020-07-06 09:53:43
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