Tính lim x đến 1 cưn 3 26 +x - căn x+8/ x^2-3x+2
Giải thích
Đáp án đúng là: A
limx→126+x3−x+8x2−3x+2=limx→126+x3−3+3−x+8x2−3x+2=limx→126+x3−326+x32+26+x3+9x−1x−226+x32+326+x3+9+3−x+83+x+8x−1x−23+x+8=limx→126+x−27x−1x−226+x32+326+x3+9+9−x+8x−1x−23+x+8=limx→11x−226+x32+326+x3+9−1x−23+x+8=−127+16=754.