Finding Big-O of sqrt(x^3+x^2+3) - Is Reverse the Same?

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Homework Statement



how do i find the least n such that

sqrt(x^3+x^2+3) is O(x^n)?

is the reverse the same?
 
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hi shahin93! :smile:

try it for x = 10, then x = 100, then x = 100000 …

you'll soon get the hang of what n needs to be :wink:​
 

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