Explain your answer will give brainliest if correct

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Which representation has a constant of variation of -2.5