Binomial Theorem And Its Simple Applications Question 60
Question: The statement $ P(n) $ $ 1\times 1!+2\times 2!+3\times 3!+…+n\times n! $ $ =(n+1)!-1 $ is
Options:
A) True for all $ n>1 $
B) Not true for any n
C) True for all $ n\in N $
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
- [c] check for $ n=1,2,3,…, $ it is true for all $ n\in N. $