((a+b)^n) में \(a^{n-r}b^r\) का coefficient किस counting से आता है?
In ((a+b)^n) from which counting does the coefficient of \(a^{n-r}b^r\) come?
Explanation opens after your attempt
Correct Answer
A. (b) को (r) brackets से चुननाChoosing (b) from (r) brackets
Concept
There are \(^{n}C_r\) ways to choose (b) from (r) of the (n) brackets. In exams treat a binomial coefficient as selection.
Why this answer is correct
The correct answer is A. (b) को (r) brackets से चुनना / Choosing (b) from (r) brackets. There are \(^{n}C_r\) ways to choose (b) from (r) of the (n) brackets. In exams treat a binomial coefficient as selection.
Exam Tip
(n) brackets में से (r) brackets में (b) चुनने के \(^{n}C_r\) तरीके हैं। परीक्षा में binomial coefficient को selection मानें।
Login to save your score, XP, coins and progress.