Calcule os seguintes limites infinitos.
(a) lim x 2^+ x^2+3 xx^2-4
(b) lim x 2^+ 2 x+1x
© lim x 1^- 2 x+3x^2-1
(d) lim x 2^+ x^2-4x^2-4 x+4
(e) lim x 0^+ ln (x)x
(f) lim x 0 tan (x)x^3
(g) lim x 0 |x|x^3 sen(x)
(h) lim x 0^+ raizx-1raizx
(i) lim x 1^+ x-1raizx-1
(j) lim x 0 ln (-x)
(k) lim x -infty 4 x^7-18 x^3+9
(l) lim x infty raizx+x^22 x-x^2
(m) lim x infty 1-e^x1+2 e^x
(n) lim x infty 8+x-4 x^2raiz6+x^2+7 x^4
(o) lim x infty 12 x+3
§ lim x -infty(x^4+x^5)
(q) lim x -infty e^3 x-e^-3 xe^3 x+e^-3 x
® lim x 2^+ 1-2cos(3x)3x-6.

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