Question: Find the quadratic approximation P (x) = Ax2+Bx+C for the function f(x) = cos(x) that satises the 3 conditional above when a = 0. Use
Find the quadratic approximation P (x) = Ax2+Bx+C for the function f(x) = cos(x) that satises the 3 conditional above when a = 0. Use a graphing calculator or Desmos to graph f(x), P (x), and the linear approximation L(x) = 1 on the same xy-axis. Then sketch this onto a sheet of paper. How well do L(x) and P (x) approximate f(x)?
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