I have to find this limit without using l'Hôspital's rule:
limx→0αsinβx−βsinαxx2sinαx
Using L'Hôspital's rule gives:
β6(α2−β2)
I am stuck where to begin without using the rule.
I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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