已知函數(shù)f(x)=(x-a)2(x-b)(a,b∈R,a
已知函數(shù)f(x)=(x-a)2(x-b)(a,b∈R,a
數(shù)學(xué)人氣：184 ℃時間：2020-03-26 11:40:20
優(yōu)質(zhì)解答
將ab的值帶入方程,f(x)求導(dǎo),3x的平方－8x+5,將x=2帶入,為1,設(shè)y=x+b,得b=0,所以切線方程為y=x
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