JEE Main 2007Annual, Paper 1MathematicsEasyBinomial Theorem and Its Simple Applications131× since 2002In the binomial expansion of (a−b)n, n≥5,{\left( {a - b} \right)^n},\,\,\,n \ge 5,(a−b)n,n≥5, the sum of 5th{5^{th}}5th and 6th{6^{th}}6th terms is zero, then a/ba/ba/b equalsAOption A. n−56{{n - 5} \over 6}6n−5BOption B. n−45{{n - 4} \over 5}5n−4COption C. 5n−4{5 \over {n - 4}}n−45DOption D. 6n−5{6 \over {n - 5}}n−56CheckSkip · show solution
