If ( lim_{x rightarrow 0} frac{(x(1+acos(x))-bsin(x))}{x^3}=1 ), then find the value of a and b.

If ( lim_{x rightarrow 0} frac{(x(1+acos(x))-bsin(x))}{x^3}=1 ), then

1.	If ( lim_{x rightarrow 0} frac{(x(1+acos(x))-bsin(x))}{x^3}=1 ), then find the value of a and b.
A.	2.5, -1.5
B.	-2.5, -1.5
C.	-2.5, 1.5
D.	2.5, 1.5
Answer» C. -2.5, 1.5