need to find:
lim as x > 0
of
4(e^2x  1) / (e^x 1)
Try splitting the limit for the numerator and denominator
lim lim
x>0 4(e^2x1) (4)x>0 (e^2x1)
______________ = ________________
lim lim
x>0 e^X1 x>0 e^x1
Next solve for lim x>0 and simplify
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