What are the vertex and axis of symmetry of the parabola y = x2 – 16x + 63?

The product of two negative rational numbers is always zero sometimes zero never zero

(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.

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