The Gateway to Computer Science Excellence
0 votes
79 views

Let 

 

We define Then ar is equal to.

 

  1. $\binom{r}{2019}$
  1. $\binom{r}{r + 2018}$
  1. $\binom{r}{2019 – r}$
  1. $\binom{r}{r – 2018}$

Can anyone tell me if this type of question is in Gate 2019 syllabus or not because I have never seen such question in previous year question? If yes, then when can I learn this stuff from.  Because I am unable to understand the whole solution.

in Combinatory by (197 points)
closed by | 79 views
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
50,737 questions
57,314 answers
198,359 comments
105,085 users