Theorem 3.2.10. Let ICR be an open interval, let e E1, let f, g:1-{c}-R be functions and let keR. Suppose that lim f(x) and limg(x) exist. 1. lim [f+g](x) exists and lim[f+g](x)= lim f(x) + limg(x). 2. lim f-g](x) exists and lim[f-g](x)= lim f(x)- limg(x) 3. lim kf1(x) exists and lim k f1(x) = klim f(x). 4. lim [fg](x) exists and lim[fg](x) = [lim f(x)] · [limg(x)}. lim f) 5. If limg(x) # 0, then lim [4] (x) exists and lim [4] (x) = Prove above theorem. lim()

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Theorem 3.2.10. Let ICR be an open interval, let e e 1, let f,g:1-{c} -R be
functions and let k ER. Suppose that lim f(x) and limg(x) exist.
1. lim [f+g](x) exists and lim[f+g](x) = lim f(x) + lim g(x).
2. lim [f-g](x) exists and lim[f-g](x) = lim f(x)– limg(x).
3. lim k f1(x) exists and lim k f1(x) = klim f(x).
4. lim [fg](x) exists and lim[fg](x) = [lim f(x) [limg(x)).
lim f()
5. If limg(x) # 0, then lim [4 (x) exists and lim(x) = im )
Prove above theorem.
Transcribed Image Text:Theorem 3.2.10. Let ICR be an open interval, let e e 1, let f,g:1-{c} -R be functions and let k ER. Suppose that lim f(x) and limg(x) exist. 1. lim [f+g](x) exists and lim[f+g](x) = lim f(x) + lim g(x). 2. lim [f-g](x) exists and lim[f-g](x) = lim f(x)– limg(x). 3. lim k f1(x) exists and lim k f1(x) = klim f(x). 4. lim [fg](x) exists and lim[fg](x) = [lim f(x) [limg(x)). lim f() 5. If limg(x) # 0, then lim [4 (x) exists and lim(x) = im ) Prove above theorem.
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