A customer bought 42 million minutes of phone time each min cost 2 cents what was total bill

What signals you that factoring by grouping is the best method to use when factoring a problem?

(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.

Which of the following transformations will always produce a congruent figure?