Calculate the coefficient of in the expansion of .

MATHEMATICS · Single correct · A Level · Mathematics · Sequences and series · Sequences and series

Problem

Calculate the coefficient of x4x^{4} in the expansion of (x−1x)8(x-\dfrac{1}{x})^{8}. (a) 5656 (b) −28-28 (c) 2828 (d) 7070

Related theory

Browse the problem library