If limit (1 + ax)b/x = e4 where a and b are natural numbers then values of a and b = ?

if limxa f(x)=limxag(x)=0 such that f(x)g(x) existsthen limxa1+f(x)1/g(x)=elimxaf(x)g(x)
if the given limit is
limx01+axb/x=elimx0ax*bx=elimx0ab=eabcomparing from the given equation , we haveab=4a=2 and b=2 or a =1 and b=4 [since a and b are natural numbers


hope this helps you

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