What is the area of this trapezoid? ​

(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 average rate of change for this function for the interval from x=2 to x=4 ?

In the diagram, gef and hef are congruent. what is the value of x