Question

помогите срочно даю 100балов пж срочно!!! нужно 1 и 3

Answer 1

$\displaystyle \lim_{x \to \ -1} (2(x^2+1)-1)= \lim_{x \to \ -1} (2*((-1)^2+1)-1)=3\\\\ \lim_{x \to \ 2}(x^2-3x)= \lim_{x \to \ 2} (2^2-3*2)=-2\\\\ \lim_{x \to \ 4} (2\sqrt{x}-1)= \lim_{x \to \ 4}(2\sqrt{4}-1)=3\\\\ \lim_{x \to \ 1}(2\sqrt{4x}-3)= \lim_{x \to \ 1}(2*\sqrt{4*1}-3)=1$