i need help with the use of the limit definition how can i prove this lim 1 = 1 c is not zero x-c x c also If c>0, then lim square root of x = square root of c x-c
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Originally Posted by loop i need help with the use of the limit definition how can i prove this lim 1 = 1 c is not zero x-c x c please format your question better. i don't know what you are asking also If c>0, then lim square root of x = square root of c x-c do you know what the definition says? note that for now can you fill in the blanks?
Originally Posted by loop i need help with the use of the limit definition how can i prove this lim 1 = 1 c is not zero Mr F says: I assume you mean x-c x c also If c>0, then lim square root of x = square root of c Mr F says: I assume you mean x-c ..
yes that is what am trying to say.
Last edited by mr fantastic; April 12th 2009 at 02:40 PM.
Originally Posted by loop sorry about the post. and yes that is what am trying to say. for the first, we want for any , provided for some . can you fill in the blanks?
Originally Posted by loop i need help with the use of the limit definition how can i prove this lim 1 = 1 c is not zero x-c x c also If c>0, then lim square root of x = square root of c x-c The first one has also been asked and replied to here: http://www.mathhelpforum.com/math-he...ove-limit.html
Originally Posted by loop [snip] If c>0, then lim square root of x = square root of c x-c . Only values of in the neighbourhood of are of interest so impose the restriction , say. Under this restriction, . Therefore: . Note that . So for all there exists such that .
Last edited by mr fantastic; April 12th 2009 at 10:36 PM. Reason: Added a small technical detail
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