For what values of a and b is the following equation true?

( (sin2x)/ x^3 + a + b/(x^2))
lim x--->0

a=
b=

1 answer

I don't see an equation.
However, sin2x/x^3 = (sin2x/(2x)) * 2/x^2
and you know limit of sunu/u = 1