Mathematics
Senior High

この極限の変形はどのように行ってるのですか?

= = lim x-1+0 (ax²+bx-a+b-2)-(-2) x+1 lim {a(x-1)+b}=-2a+b x-1+0 =
数3 極限

Answers

ax²-a=a(x²-1)=a(x+1)(x-1)
bも同じようにやって約分ですね

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