4 × 22 + 16 ÷ 4 - (4.9 + 5.5)

(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.

Acircle has a circumference of 7.850 units. what is its radius?

(60 points) explain this in detail