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ํ•จ์ˆ˜์˜ ๊ทนํ•œ (3) - ํ•จ์ˆ˜์˜ ๊ทนํ•œ์— ๋Œ€ํ•œ ์„ฑ์งˆ

ํ•จ์ˆ˜์˜ ๊ทนํ•œ (2) ํŽธ

 

ํ•จ์ˆ˜์˜ ๊ทนํ•œ (2) - ์šฐ๊ทนํ•œ๊ณผ ์ขŒ๊ทนํ•œ

ํ•จ์ˆ˜์˜ ๊ทนํ•œ (1)ํŽธ ํ•จ์ˆ˜์˜ ๊ทนํ•œ (1) - ํ•จ์ˆ˜์˜ ์ˆ˜๋ ด๊ณผ ๋ฐœ์‚ฐ ํ•จ์ˆ˜์˜ ์ˆ˜๋ ด๊ณผ ๋ฐœ์‚ฐ ํ•จ์ˆ˜ f(x)์—์„œ x์˜ ๊ฐ’์ด a๊ฐ€ ์•„๋‹ˆ๋ฉด์„œ a์— ํ•œ์—†์ด ๊ฐ€๊นŒ์›Œ์งˆ ๋•Œ(xโ†’af(x)์˜ ๊ฐ’์ด ์ผ์ •ํ•œ ๊ฐ’ L์— ํ•œ์—†์ด ๊ฐ€

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ํ•จ์ˆ˜์˜ ๊ทนํ•œ์— ๋Œ€ํ•œ ์„ฑ์งˆ

โญ๏ธโญ๏ธโญ๏ธโญ๏ธ ๊ทนํ•œ๊ฐ’ limxโ†’af(x), limxโ†’ag(x)๊ฐ€ ์กด์žฌํ•  ๋•Œ, โญ๏ธโญ๏ธโญ๏ธโญ๏ธ

์‚ฌ์น™ ์—ฐ์‚ฐ์ด ๊ฐ€๋Šฅ!

* ์ „์ œ๊ฐ€ ์ค‘์š”!!

 

[1]

limxโ†’acf(x)=climxโ†’af(x)

 

[2]

limxโ†’a{f(x)+g(x)}=limxโ†’af(x)+limxโ†’ag(x)

 

[3]

limxโ†’a{f(x)โˆ’g(x)}=limxโ†’af(x)โˆ’limxโ†’ag(x)

 

[4]

limxโ†’af(x)g(x)=limxโ†’af(x)โ‹…limxโ†’ag(x)

 

[5]

limxโ†’af(x)g(x)=limxโ†’af(x)limxโ†’ag(x) (โญ๏ธ๋‹จ, limxโ†’ag(x)โ‰ 0)

 

โญ๏ธ ์—ญ์€ ์„ฑ๋ฆฝํ•˜์ง€ ์•Š๋Š”๋‹ค! (1~5๋ฒˆ ๋ชจ๋‘) โญ๏ธ

>> 1~5๋ฒˆ์ด ์„ฑ๋ฆฝํ•œ๋‹ค๊ณ  ํ•ด์„œ ๊ทนํ•œ๊ฐ’ limxโ†’af(x), limxโ†’ag(x)๊ฐ€ ์กด์žฌํ•˜๋Š” ๊ฒƒ์€ ์•„๋‹ˆ๋‹ค!

 

ํ•จ์ˆ˜ f(x)๊ฐ€ ๋‹คํ•ญํ•จ์ˆ˜์ผ ๋•Œ,
limxโ†’af(x)=f(x)

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