• 513 Rules
ᐥSuppose that 「f(x) Ƚx→a」=L and 「g(x) Ƚx→a」=M. Then the following rules apply.
❶ sum rule
「f(x)+g(x) Ƚx→a」 = L+M
❷ product rule
「f(x)·g(x) Ƚx→a」 = L·M
❸ quotient rule
「f(x)/g(x) Ƚx→a」 = L/M provided that M≠0ᐥ
Proof of ❶
∀ε>0 ∃δ>0 such that 0<|x−a|<δ ⇒ ∣f ...
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