NCERT Solutions for Class 11 Maths Exercise 9.2 Sequences and Series
NCERT Solutions for Class 11 Maths Exercise 9.2 Sequences and Series: NCERT Solutions are the best study material for students. With Class 11 Maths Exercise 9.2 Solutions, students learn about arithmetic progression. This exercise also discusses the arithmetic mean and arithmetic sequence. Exercise 9.2 Class 11 Solutions will provide a deep understanding of these concepts.
Embibe’s subject experts prepare NCERT Solutions for Exercise 9.2 following the latest syllabus. These NCERT Solutions also clear the conceptual doubts regarding the chapter. Apart from the solutions, Embibe provides 500+ practice questions on this topic for. Students can practice these questions and take mock tests to prepare for the exam. Read on to learn more.
NCERT Solutions for Class 11 Maths Exercise 9.2: Important Topics
Solving NCERT arithmetic progression questions from Chapter 9 will help students with their studies. Class 11 Maths Exercise 9.2 mostly contains questions based on arithmetic progression formulas. This is one of the most important topic from this exercise. Students must practice NCERT Solutions to understand the application of these formulas.
The arithmetic sequence of numbers is given where some common difference values are constant throughout the series of numbers. Moreover, Class 11 Maths Exercise 9.2 consists of both easy and difficult level questions. However, students can refer to Embibe to learn about Arithmetic Progression in detail. Embibe provides Embibe Explainers, NCERT 3D videos, NCERT Exemplars on these topics for. Check them about before preparing a study plan. Now, let us look at the important topics from Exercise 9.2:
Sr. No.
Topic Name
1.
Arithmetic Progression
2.
Finding the nth Term of A.P. With Given Two Terms
3.
Sum of First n Terms of an Arithmetic Progression
NCERT Solutions for Class 11 Maths Exercise 9.2: Points to Remember
Some of the important points to remember from Class 11 Maths Exercise 9.2 are as follows:
Arithmetic is calculated as a + (n – 1) d.
The first term in an arithmetic progression is denoted by the letter “a,” the last term by the letter “l,” the common difference by the letter “d,” and the number of terms by the letter “n.”
Sum of the odd natural numbers: an = 2n – 1
The sum of cubes of first n natural numbers : Sn = [n(n+1)]2/4
Sum of squares of first n natural numbers: Sn = [n(n+1)(2n+1)]/6
Any series starting with a1 and ending with d is an arithmetic sequence if an + 1 = an + d, where d is the common difference of the A.P.
First Term of AP: a, a + d, a + 2d, a + 3d, a + 4d, ………. ,a + (n – 1) d
Common Difference in Arithmetic Progression: d = a2 – a1 = a3 – a2 = ……. = an – an – 1
nth Term of AP: an = a + (n − 1) × d
NCERT Solutions for Class 11 Maths: All Chapters
NCERT Solutions for Class 11 Maths are listed below to help students with their exam preparations: