Răspuns:
a)f(x)={1/(x+2) pt x≤2
{1/(x-2) pt x>2
lim1/(x+2)=1/(2+2)=1/4
lim1/(x-2)=1/(2-2)=1/0=+∞
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b)f(x)=sinx
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f(x)=x³+5
f(x)=x³
limf(x)=limx³+5=+∞
limg(x)=limx³=+∞
lim(f(x)-g(x)==lim(x³+5-x³)=5
d) f(x)=-x³
g(x)=x³+1
limf(x)/g(x)=-x³/(x³+1)= -1
Explicație pas cu pas:
