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Evaluate `lim_(xto0) (e^(x)-e^(xcosx))/(x+sinx).` |
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Answer» `underset(xto0)lim(e^(x)-e^(xcosx))/(x+sinx)=underset(xto0)lime^(x)(e^(x-cosx)-1)/(x+sinx)` `=e^(0)underset(xto0)lim(e^(x-cosx)-1)/(x-xcosx).underset(xto0)lim(x-xcosx)/(x+sinx)` `=1xx1xxunderset(xto0)lim(1-cosx)/(1+(sinx)/(x))` =`(1-1)/(1+1)` =0 |
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