Question

lim(x趋近于2)x^2-4/x^-3x+2

Answer 1

lim(x→2)(x^2-4)/(x^2-3x+2)

=lim(x→2)(x+2)(x-2)/(x-1)(x-2)

=lim(x→2)(x+2)/(x-1)

=(2+2)/(2-1)

=4

如果不懂,祝学习愉快!