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Evaluate the following limit: (lim)(x->0...

Evaluate the following limit: `(lim)_(x->0)(1-cosm x)/(x^2)`

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`(lim)_(x->0)(1-cosm x)/(x^2)`

L'Hopital Rule:

`lim_(x rightarrow b) (f(x))/(g(x))=lim_(x rightarrow b) (f'(x))/(g'(x))`

`(lim)_(x->0)(msinm x)/(2x)`

`(lim)_(x->0)(m^2cosm x)/(2)`

`=(m^2cosm *0)/(2)=m^2/2`
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