**CBSE NCERT Solutions For Class 11 Maths Chapter 9: ** According to the NCERT Class 11 Maths Chapter 9, in mathematics, the word, ‘sequence’ is used in much the same way as it is in ordinary English. When we say that a collection of objects is listed in a sequence, we usually mean that the collection is ordered in such a way that has an identifies first member, second member, third member and so on. For example, population of human beings or bacteria at different times form a sequence. The amount of money deposited in a bank, over a number of years forms a sequence.

Solving the NCERT Solutions For Class 11 Maths Chapter 9 will teach you that depreciated values of certain commodities occur in a sequence. Sequences have important applications in several spheres of human activities. CBSE NCERT Solutions for Class 11 Chapter 9 also teaches that sequences, following specific patterns, are called progressions. Besides teaching you more about A.P; arithmetic mean, geometric mean, relationship between A.M. and G.M, special series in forms of sum to n terms of consecutive natural numbers, sum to n terms of squares of natural numbers and sum to n terms of cubes of natural numbers will also be taught in the CBSE Class 11 Maths Chapter 9. Solving the Solutions for NCERT Class 11 Maths Chapter 9 will further clear any confusion you might have on this topic. We get you completely solved NCERT Solutions for Class 11 Maths Chapter 9 by the best teachers at Embibe.

## NCERT Solutions For Class 11 Maths Chapter 9: Sequences And Series

The topics and sub-topics of NCERT Class 11 Maths Chapter 9 Sequences And Series will assist you in your CBSE Class 11 Maths Preparation. The topics and sub-topics of this topic will aid you in preparing well for the CBSE Exam. This will also help you in understanding the topics under NCERT Class 11 Maths Chapter 9:

9.1 | Introduction |

9.2 | Sequences |

9.3 | Series |

9.4 | Arithmetic Progression (A.P.) |

9.4.1 | Arithmetic Mean |

9.5 | Geometric Progression (G.P.) |

9.5.1 | General Term of a G.P. |

9.5.2 | Sum to n terms of a G.P. |

9.5.3 | Geometric Means (G.M.) |

9.6 | Relationship Between A.M. and G.M. |

9.7 | Sum to n Terms of Special Series |

### NCERT Solutions For Class 11 Maths Chapter 9 PDF Download

Once you solve the NCERT Solutions for Class 11 Maths Chapter 9, it will be easy for you to solve various kinds of sums. Consider the following examples: Assume that there is a generation gap of 30 years, we are asked to find the number of ancestors, i.e., parents, grandparents, great grandparents, etc. that a person might have over 300 years. Here, the total number of generations= 300/30=10. The number of person’s ancestors for the first, second, third, tenth generations are 2,4,8,16,32,…,1024. These numbers form what we call a sequence. According to the CBSE NCERT Class 11 Maths Chapter 9, consider the successive quotients that we obtain in the division of 10 by 3 at different steps of division. In this process we get 3,3.3,3.33,3.333,… and so on. These quotients also form a sequence. The various numbers occurring in a sequence are called its terms. Download and solve the Solutions for NCERT Class 11 Maths Chapter 9 PDF given below.

### NCERT Solutions For Class 11 Maths Chapter 9: Sequences And Series

We denote the terms of a sequence by a_{1}, a_{2}, a_{3},…,a_{n},…, etc, the subscripts denote the position of the term. The n^{th} term is the number at the n^{th} position of the sequence and is denoted by an. The n^{th} term is also called the general term of the sequence. Thus, the terms of the sequence of a person’s ancestors mentioned above are a_{1}=2, a_{2}=4, a_{3}=8,…, a_{10}=1024. Similarly, in the example of successive quotients a_{12}=3.3, a_{3}=3.33,…a_{6}=3.33333, etc.A sequence containing a finite number of terms is called a finite sequence. For example sequence of ancestors is a finite sequence since it contains 10 terms (a fixed number). CBSE NCERT Class 11 Maths Chapter 9 Sequences and Series further teaches a sequence is called infinite, if it is not a finite sequence. For example, the sequence of successive quotients mentioned above is an infinite sequence, infinite in the sense that it never ends.

NCERT Solutions for Class 11 Maths Chapter 1 |
NCERT Solutions for Class 11 Maths Chapter 3 |
NCERT Solutions for Class 11 Maths (All Chapter) |

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