Question 0802b

Maclaurin Series

Standard Series II

Question

Find the Maclaurin expansion of

{\cos (- x + 3 x^2)}

up to and including the term in

{x^4.}

Express your answer in the form

1+ax^2+bx^3+cx^4 + \ldots

{a=}

{b=}

{c=}