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Find the 5th Term in the Binomial Expansion (ay)n( a - y ) ^ { n }

Question 222

Multiple Choice

Find the 5th term in the binomial expansion. (ay) n( a - y ) ^ { n }


A) n!(n5) !5!an5y5\frac { n ! } { ( n - 5 ) ! 5 ! } a ^ { n - 5 } y ^ { 5 }
B) n!(n5) !5!an5yn\frac { n ! } { ( n - 5 ) ! 5 ! } a ^ { n - 5 } y ^ { n }
C) n!(n4) !4!an4y4\frac { n ! } { ( n - 4 ) ! 4 ! } a ^ { n - 4 } y ^ { 4 }
D) n!(n4) !an4y4\frac { n ! } { ( n - 4 ) ! } a ^ { n - 4 } y ^ { 4 }
E) (n4) !(n4) !4!an4y4\frac { ( n - 4 ) ! } { ( n - 4 ) ! 4 ! } a ^ { n - 4 } y ^ { 4 }

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