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Find the First Four Terms in the Maclaurin Series For f

Question 157

Multiple Choice

Find the first four terms in the Maclaurin series for f(x) =xe−xf ( x ) = x e ^ { - x } .


A) x−x2+x3−x4x - x ^ { 2 } + x ^ { 3 } - x ^ { 4 }
B) x−12x2+13x3−14x4x - \frac { 1 } { 2 } x ^ { 2 } + \frac { 1 } { 3 } x ^ { 3 } - \frac { 1 } { 4 } x ^ { 4 }
C) x−x2+12x3−16x4x - x ^ { 2 } + \frac { 1 } { 2 } x ^ { 3 } - \frac { 1 } { 6 } x ^ { 4 }
D) x−2x2+3x3−4x4x - 2 x ^ { 2 } + 3 x ^ { 3 } - 4 x ^ { 4 }
E) x+12x2+16x3+124x4x + \frac { 1 } { 2 } x ^ { 2 } + \frac { 1 } { 6 } x ^ { 3 } + \frac { 1 } { 24 } x ^ { 4 }
F) x+x2+13x3+18x4x + x ^ { 2 } + \frac { 1 } { 3 } x ^ { 3 } + \frac { 1 } { 8 } x ^ { 4 }
G) x+x2+12x3+16x4x + x ^ { 2 } + \frac { 1 } { 2 } x ^ { 3 } + \frac { 1 } { 6 } x ^ { 4 }
H) 12x−16x2+124x3−1120x4\frac { 1 } { 2 } x - \frac { 1 } { 6 } x ^ { 2 } + \frac { 1 } { 24 } x ^ { 3 } - \frac { 1 } { 120 } x ^ { 4 }

Correct Answer:

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