Question: Find the second Taylor polynomial P2(x) for the function f (x) = ex cos x about x0 = 0. a. Use P2 (0.5) to approximate

Find the second Taylor polynomial P2(x) for the function f (x) = ex cos x about x0 = 0.
a. Use P2 (0.5) to approximate f (0.5). Find an upper bound for error |f (0.5) ˆ’ P2(0.5)| using the error formula, and compare it to the actual error.
b. Find a bound for the error |f(x)ˆ’P2(x)| in using P2(x) to approximate f (x) on the interval [0, 1].
c. Approximate

d. Find an upper bound for the error in (c) using

and compare the bound to the actual error.

f(x) dx usingP2(x) dx

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