Find the Maclurni series for f and its radius of convergence. You may use either the direct method (definition of a Maclaurin series) or known series such as geometric series, binomial series, or the Maclaurin series for ex, sin x, tan-1 x, and 1n (1 + x),
a.

b. f (x) = 1n (4 - x)
c. f (x) = sin (x4)

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x2 f(x)1 + X