求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)抱歉,误把内容写到标题上了...求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
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![求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)抱歉,误把内容写到标题上了...求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)](/uploads/image/z/473708-20-8.jpg?t=%E6%B1%82%E6%9E%81%E9%99%90%EF%BC%9A1.lim%28x%E2%86%92%E2%88%9E%29+%283x%5E2+-2%29%2F%28x%5E4+%2Bx%5E2+-1%29+2.lim%28x%E2%86%92%E2%88%9E%29+%284x%5E4+-2x%5E2+-x%29%2F%28x%5E3+-x%5E2+%2B1%29%E6%8A%B1%E6%AD%89%EF%BC%8C%E8%AF%AF%E6%8A%8A%E5%86%85%E5%AE%B9%E5%86%99%E5%88%B0%E6%A0%87%E9%A2%98%E4%B8%8A%E4%BA%86...%E6%B1%82%E6%9E%81%E9%99%90%EF%BC%9A1.lim%28x%E2%86%92%E2%88%9E%29+%283x%5E2+-2%29%2F%28x%5E4+%2Bx%5E2+-1%29+2.lim%28x%E2%86%92%E2%88%9E%29+%284x%5E4+-2x%5E2+-x%29%2F%28x%5E3+-x%5E2+%2B1%29)
求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)抱歉,误把内容写到标题上了...求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
抱歉,误把内容写到标题上了...
求极限:
1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1)
2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)抱歉,误把内容写到标题上了...求极限:1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1) 2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
1.lim(x→∞) (3x^2 -2)/(x^4 +x^2 -1)
=lim(x→∞) (3/x^2 -2/x^4)/(1+1/x^2 -1/x^4)
=(0 -0)/(1+0 -0)
=0
2.lim(x→∞) (4x^4 -2x^2 -x)/(x^3 -x^2 +1)
=lim(x→∞) (4x -2/x -1/x^2)/(1 -1/x +1/x^3)
=(∞ -0 -0)/(1 -0 +0)
=∞