When x tends to 0, what is the limit of sin (x) times of a? Why
X tends to 0, SiNx and X are equivalent infinitesimals
So the original formula = LIM (x tends to 0) a ^ x = 1
X tends to 0, SiNx and X are equivalent infinitesimals
So the original formula = LIM (x tends to 0) a ^ x = 1