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Matematika pro Kybernetiku Lecture Notes

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Věta 3.10:<br />

1. a) Je-li lim<br />

x→x0<br />

b) Je-li lim<br />

x→x0<br />

2. a) lim<br />

x→x0<br />

f (x) = ±∞, pak lim<br />

x→x0<br />

1<br />

= 0.<br />

f (x)<br />

f (x) = 0 a na nějakém P(x0) je f (x) > 0<br />

[ f (x) < 0 ], pak lim<br />

x→x0<br />

b) Je-li lim<br />

x→x0<br />

1<br />

f (x)<br />

= +∞ [ = −∞ ].<br />

f (x) = 0 právě tehdy, když lim<br />

x→x0<br />

f (x) = a, pak lim<br />

x→x0<br />

|f (x)| = |a|.<br />

|f (x)| = 0.<br />

3. Jestliže lim f (x) = 0 a g je omezená na nějakém P(x0),<br />

x→x0<br />

pak lim f (x)·g(x) = 0.<br />

x→x0

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