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Mathematics 24 Online
OpenStudy (anonymous):

how do i start the problem? this is on finding limits

OpenStudy (anonymous):

hartnn (hartnn):

just plug in x=-3 :)

hartnn (hartnn):

The answer would be an imaginary number.

OpenStudy (anonymous):

i didn't do imaginary numbers

OpenStudy (anonymous):

i tried multiplying the conjugate and it didn't work ..... also when i plug in -3 i get a non real answer

hartnn (hartnn):

http://www.wolframalpha.com/input/?i=limit+x-%3E%28-3%29%5E-++of+x%2Fsqrt%28x%5E2-16%29 the answer is an imaginary number, whether you do it or not :)

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