Find the Maclaurin series for f(x) = cos(x2) and use it to determine f

1.	Find the Maclaurin series for f(x) = cos(x2) and use it to determine f(4)(0).
Answer» cos (x²) = 1 + x⁴/2! +x⁸/4! +x¹²/6! +x¹⁶/8! + ..., the value of f⁽⁴⁾(0) = 12 Maclaurin series is nothing but Taylor series about the point x = 0.

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