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Mathematics 18 Online
OpenStudy (appleduardo):

whats the limit of the following function??

OpenStudy (appleduardo):

\[\frac{ x-1 }{ (x+2)^{2} }\]

OpenStudy (appleduardo):

x-->0

OpenStudy (appleduardo):

could somebody hel me? please

hartnn (hartnn):

just put x=0 what u get ?

OpenStudy (appleduardo):

i get -1/4 so thats the answer?

hartnn (hartnn):

yes! thats it. when you don't get 0 in the denominator, you can directly put the value of x in the function.

OpenStudy (appleduardo):

:o oohh! thanks you so much!!, mm would you help me in this one please? --> \[\frac{ 1 }{(x-3)^{8} }\]

OpenStudy (appleduardo):

x-->3

hartnn (hartnn):

here u get denominator = 0 when u put x = 3 so the limit = 1/0 = infinity

OpenStudy (appleduardo):

thank you so! :P

hartnn (hartnn):

welcome :)

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