JEE Main 202324 Jan, Evening shiftMathematicsHardBinomial Theorem and Its Simple Applications131× since 2002If (30C1)2+2(30C2)2+3(30C3)2 + ... + 30(30C30)2=α60!(30!)2{({}^{30}{C_1})^2} + 2{({}^{30}{C_2})^2} + 3{({}^{30}{C_3})^2}\, + \,...\, + \,30{({}^{30}{C_{30}})^2} = {{\alpha 60!} \over {{{(30!)}^2}}}(30C1)2+2(30C2)2+3(30C3)2+...+30(30C30)2=(30!)2α60! then α\alphaα is equal to :AOption A. 30BOption B. 10COption C. 15DOption D. 60CheckSkip · show solution