Q. 39 C5.0( 1 Vote )

Find the two middle terms in the expansion of :



Answer :

For ,


, and n=9


As n is odd, there are two middle terms i.e.


I. and II.


General term tr+1 is given by,



I. The first middle term is


Therefore, for 5th middle term, r=4


Therefore, the first middle term is







= 126p. x-1


II. The second middle term is


Therefore, for the 6th middle term, r=5


Therefore, the second middle term is




………





Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Lecture on properties of Binomial Coefficients58 mins
Interactive Quiz on properties of Binomial Coefficients51 mins
Interactive quiz on general and middle terms of binomial theorem54 mins
Learn Binomial Theorem through Questions52 mins
Learn how to find general & middle terms41 mins
Interactive Quiz | general & middle terms53 mins
Finding coefficient of x^n in binomial expansion59 mins
Questions based on General term of Binomial Theorem58 mins
General Term of Binomial Theorem60 mins
Stewart's Theorem46 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses