The calculation limit is 2 / X of LIM (n →∞) (1 + 2x) (x→∞)

The calculation limit is 2 / X of LIM (n →∞) (1 + 2x) (x→∞)

lim(n→∞)(1+2x)^(2/x)
=lim(n→∞)[(1+2x)^(1/2x)]^4
=e^4