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-)
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)
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
lim
lim
lim x21920
lim x21920
计算下列极限:(1)lim(√n+1-√n)(2)lim√n(√n+1-√n)
计算下列极限:(1)lim(√n+1-√n)(2)lim√n(√n+1-√n)
lim x→0
lim x→0
lim(2n-1)!/2n!
lim(2n-1)!/2n!