请问lim(x->0+)lim(x->0-)lim(x->1+)lim(x->1-)
请问lim(x->0+)lim(x->0-)lim(x->1+)lim(x->1-)
\( \lim \limits_{x \to 0} { { x - \sin x} \over { { x^3}}} \)=( ) A: 0 B: 1 C: 6 D: \( {1 \over 6} \)
\( \lim \limits_{x \to 0} { { x - \sin x} \over { { x^3}}} \)=( ) A: 0 B: 1 C: 6 D: \( {1 \over 6} \)
\( \lim \limits_{x \to 0} { { x - \arcsin x} \over { { {\sin }^3}x}} = {1 \over 6} \)
\( \lim \limits_{x \to 0} { { x - \arcsin x} \over { { {\sin }^3}x}} = {1 \over 6} \)
若lim(an)=a,则lim|an|=|a|反之是否成立?
若lim(an)=a,则lim|an|=|a|反之是否成立?
lim(x→∞)(1-1/(x+1))^(-x-1)=lim(x→∞)(1/(x+1))^(-x-1)lim(x→∞)(1-1/（x+1）)^(x+1)
lim(x→∞)(1-1/(x+1))^(-x-1)=lim(x→∞)(1/(x+1))^(-x-1)lim(x→∞)(1-1/（x+1）)^(x+1)
已知等差数列an前17项和S17=51，则a5-a7+a9-a11+a13=______． A: 3 B: 6 C: 17 D: 51
已知等差数列an前17项和S17=51，则a5-a7+a9-a11+a13=______． A: 3 B: 6 C: 17 D: 51
lim(x)lim(x→∞)[(x-1)/(x+1)]^2x
lim(x)lim(x→∞)[(x-1)/(x+1)]^2x
零件的工作应力σca、极限应力σlim、许用应力[σ]，则安全系数S为 A: σlim/[σ] B: σlim/σca C: σca/[σ] D: σca/σlim
零件的工作应力σca、极限应力σlim、许用应力[σ]，则安全系数S为 A: σlim/[σ] B: σlim/σca C: σca/[σ] D: σca/σlim
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lim
lim x21920
lim x21920