JEE Main & Advanced
Mathematics
Binomial Theorem and Mathematical Induction
Question Bank
General term, Coefficient of any power of x, Independent term, Middle term and Greatest term and Greatest coefficient
question_answer
If the coefficients of \[{{r}^{th}}\]term and \[{{(r+4)}^{th}}\]term are equal in the expansion of \[{{(1+x)}^{20}}\], then the value of r will be [RPET 1985, 97; Kerala (Engg.) 2001; MP PET 2002]