9. Determine: (a) lim x→0+ 1/(3x) (b) lim x→+∞ (2x+3)/(5x+7) (c) lim x→+∞ (x−3)/√(4x2+25) (d) lim x→−∞ (4−3x2)/√(x6+9) (e) lim x→2− 3/(x−2) (f) lim...
9. Determine:
(a) lim x→0+ 1/(3x)
(b) lim x→+∞ (2x+3)/(5x+7)
(c) lim x→+∞ (x−3)/√(4x2+25)
(d) lim x→−∞ (4−3x2)/√(x6+9)
(e) lim x→2− 3/(x−2)
(f) lim x→7 4/(x−2)2
(g) lim x→+∞ (10x5+x4+31)/x6
(h) lim x→−8+ 2x/(x+8)
(a) lim x→0+ 1/(3x)
(b) lim x→+∞ (2x+3)/(5x+7)
(c) lim x→+∞ (x−3)/√(4x2+25)
(d) lim x→−∞ (4−3x2)/√(x6+9)
(e) lim x→2− 3/(x−2)
(f) lim x→7 4/(x−2)2
(g) lim x→+∞ (10x5+x4+31)/x6
(h) lim x→−8+ 2x/(x+8)
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💡 1 Resposta
Ed 
Para a questão 9, temos: (a) lim x→0+ 1/(3x) = +∞ (b) lim x→+∞ (2x+3)/(5x+7) = 2/5 (c) lim x→+∞ (x−3)/√(4x2+25) = 1/2 (d) lim x→−∞ (4−3x2)/√(x6+9) = -3 (e) lim x→2− 3/(x−2) = -∞
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