Revision Notes: Sequence & Series

# Sequence And Series Class 11 Notes Maths Chapter 8

## Mathematics (Maths) for JEE Main & Advanced

209 videos|443 docs|143 tests

## FAQs on Sequence And Series Class 11 Notes Maths Chapter 8

 1. What is the difference between a sequence and a series in mathematics?
Ans. A sequence is a list of numbers arranged in a particular order, while a series is the sum of the terms of a sequence.
 2. How can I find the sum of an arithmetic series?
Ans. The sum of an arithmetic series can be found using the formula: Sn = n/2 [2a + (n-1)d], where Sn is the sum, n is the number of terms, a is the first term, and d is the common difference.
 3. What is the formula for finding the nth term of a geometric sequence?
Ans. The formula for finding the nth term of a geometric sequence is: an = a1 * r^(n-1), where an is the nth term, a1 is the first term, r is the common ratio, and n is the term number.
 4. How can I find the sum of an infinite geometric series?
Ans. The sum of an infinite geometric series can be found using the formula: S = a / (1 - r), where S is the sum, a is the first term, and r is the common ratio (|r| < 1).
 5. Can a series have a negative number of terms?
Ans. No, a series cannot have a negative number of terms. The number of terms in a series must always be a non-negative integer.

## Mathematics (Maths) for JEE Main & Advanced

209 videos|443 docs|143 tests

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