When calculating the limit of the function f(x) = (x^2 + 3)/ sqrt(2x^4 + 5) as x→∞, is it correct to square the top and then place the resulting polynomial under a square root (i.e. sqrt(x^2 + 3)^2)? Then you can rewrite the problem as the square root of the limit as x→∞ of the resulting function.(adsbygoogle = window.adsbygoogle || []).push({});

So, you'll have:

sqrt(lim x→∞ (x^2 + 3)/ (2x^4 + 5))

Divide above and below by x^4 and solve. Thanks.

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# Limits With Radicals.

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