What is the value of n in the equation 4(3n + 2)1/2 - 5 = 0?

What is the approximate circumference of the circle shown below?

(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.

Solve 2x+y=3 x+y=5 in substitution method