Mhanifa please help this is late and I don’t get it

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

(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.

15 point ! ~ see if you know the answer to both you!