JEE Main 20199 Jan, Evening shiftMathematicsEasyBinomial Theorem and Its Simple Applications131× since 2002The coefficient of t⁴ in the expansion of (1−t61−t)3{\left( {{{1 - {t^6}} \over {1 - t}}} \right)^3}(1−t1−t6)3 is :AOption A. 14BOption B. 15COption C. 10DOption D. 12CheckSkip · show solution