An airplane is at 32,000 feet above sea level

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

(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.

It says factor each expression completely 8y+48