LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
21.0k views
in Mathematics by (70.9k points)

Prove that the coefficient of xr in (1 – x)–n is n+r–1Cr

1 Answer

+1 vote
by (75.8k points)
selected by
 
Best answer

(r + 1)th term in the expansion of (1 – x)–n can be written as

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...