Me there are two that have not been answered

(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 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

What is the measure of angle x? a.101 b.158 c.44 d.79