Calculate the coefficient of in the product .

MATHEMATICS · Single correct · AP · Calculus BC · Infinite Sequences and Series · Infinite Sequences and Series

Problem

Calculate the coefficient of x4x^{4} in the product (1−x)−2sin⁡x(1-x)^{-2}\sin x. (a) 44 (b) 133\dfrac{13}{3} (c) 113\dfrac{11}{3} (d) 83\dfrac{8}{3}

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