The Taylor polynomial of degree 6 is approximated for cos(x). Then the interval in which the function can be accurately calculated using Taylor series (center = 80π)?

The Taylor polynomial of degree 6 is approximated for cos(x). Then th

1.	The Taylor polynomial of degree 6 is approximated for cos(x). Then the interval in which the function can be accurately calculated using Taylor series (center = 80π)?
A.	[-3π, 3π]
B.	[77.5π, 83.5π]
C.	[-2.5π, 2.5π]
D.	[77π, 83π]
Answer» C. [-2.5π, 2.5π]