Moved _ question on limit _ 2

orir

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Mar 8, 2013
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Great! I think im starting to get the trick of how doing it.. May i ask another one?

What about:
(cosx-(cosx)^2)/x^2 (the same - limit when x approaches 0).

This is already my simplified form (it was more complex)..
The answer here is 0.5 - but again i'm stuck, what can i do from here?
 
Great! I think im starting to get the trick of how doing it.. May i ask another one?

What about:
(cosx-(cosx)^2)/x^2 (the same - limit when x approaches 0).

This is already my simplified form (it was more complex)..
The answer here is 0.5 - but again i'm stuck, what can i do from here?

Have you been exposed to Taylor's series expansion of cos(x) and cos2(x) - around 0?
 
What about:
(cosx-(cosx)^2)/x^2 (the same - limit when x approaches 0).

This is already my simplified form (it was more complex)..
The answer here is 0.5 - but again i'm stuck, what can i do from here?

Post the original question, not a simplified form.
I suspect a different approach is necessary.
 
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