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Using L'Hopital's Rule, Find $Lim_{x\to\infty} \frac{3x^3}{x^2}$

 Jun 13, 2022
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We need to use it  twice  [    derivative of numerator  /   derivative of  denominator ]

 

First time we get       [ 9x^2]  / [ 2x]

 

Second time we  get   [ 18x ]  / 2  =  9x 

 

So

 

 

lim          9x      =      inf              [   so....the limit doesn't exist ] 

x → inf

 

 

cool cool cool

 Jun 13, 2022

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