Email
Chat with tutors
logo

Ask Questions, Get Answers

X
 
Questions  >>  CBSE XI  >>  Math  >>  Sequences and Series
Answer
Comment
Share
Q)

Find the sum of $n$ terms of the series $1\times 2+2\times 3+3\times 4+4\times 5+.............$

$\begin{array}{1 1} \large\frac{n(n+1)(n+2)}{3} \\ \large\frac{n(n+1)(n+2)}{6} \\ \large\frac{n(n+1)(2n+1)}{3} \\ \large\frac{n(n+1)(n+2)}{2} \end{array} $

1 Answer

Home Ask Tuition Questions
Your payment for is successful.
Continue
...