The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by an - rbr. Find the specified term.The 9th term of (x - 2y)10.

A. 11,520x2y8
B. -5760x8y2
C. 11,520x8y2
D. -5760x2y9


Answer: A

Mathematics

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