### Dictionary Rank of a Word | Permutations & Combinations

PERMUTATIONS & COMBINATIONS Rank of the word or Dictionary order of the English words like COMPUTER, COLLEGE, SUCCESS, SOCCER, RAIN, FATHER, etc. Dictionary Rank of a Word Method of finding the Rank (Dictionary Order) of the word  “R A I N” Given word: R A I N Total letters = 4 Letters in alphabetical order: A, I, N, R No. of words formed starting with A = 3! = 6 No. of words formed starting with I = 3! = 6 No. of words formed starting with N = 3! = 6 After N there is R which is required R ----- Required A ---- Required I ---- Required N ---- Required RAIN ----- 1 word   RANK OF THE WORD “R A I N” A….. = 3! = 6 I……. = 3! = 6 N….. = 3! = 6 R…A…I…N = 1 word 6 6 6 1 TOTAL 19 Rank of “R A I N” is 19 Method of finding the Rank (Dictionary Order) of the word  “F A T H E R” Given word is :  "F A T H E R" In alphabetical order: A, E, F, H, R, T Words beginni

### Class XI Maths Formulas | Basics | Assignments | SP

Class XI maths Sample Paper, Assignments and formulas
Maths Sample paper for class 10+1, Maths Assignments for class XI, Maths formula's and Basic concepts of class 10+1, Maths Practicals and syllabus for class XI. PDF of assignments and Sample Papers for download for class 10+1

 Chapter-wise Maths MCQ Class XI Maths Sample Paper Term 1 Class XI (2021-22] Click Here Maths Practical (Class XI) For 2021-22 Maths Practical (Class XII) For 2021-22

## TEACHER'S NOTESSUBJECT: MATHEMATICS

 CLASS 11 (Non- Medical and Applied Mathematics Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 8 Chapter 13 Chapter 14 Chapter 15
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NCERT BOOK WITH SOL.
 NCERT Mathematics Book with solutions NCERT Book NCERT Sol. NCERT Book NCERT Sol.

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# CLASS X1

MATHS FORMULAS

BASIC POINTS IN DETAIL

MATHS ASSIGNMENTS

MATHS (MCQ)
CHAPTER 1 SET THEORY

Basic & Formulas

ASSIGNMENT CH-1

Sol. of Miscellaneous Exercise Ch-1

Multiple Choice Questions Ch-1

CHAPTER 2 (RELATION AND FUNCTIONS)

Basics & Formulas

Assignment 1

Multiple Choice Questions Ch-2

CHAPTER 3 (TRIGONOMETRY)

Basics & Formula's

Assignment 1

Multiple Choice Questions Ch-3
CHAPTER 4: PRINCIPAL OF MATHEMATICAL INDUCTION

Assignment 1

Multiple Choice Questions Ch-4
CHAPTER 5: COMPLEX NUMBERS (Number System)

Basics & Formula's

Assignment 1

Multiple Choice Questions Ch-5

CHAPTER 6: (LINEAR INEQUALITIES)

Basics & Formula's

Assignment-1

Assignment- 2

Multiple Choice Questions Ch-6
CHAPTER 7: (PERMUTATION & COMBINATION)

Basics & Formulas

Method of finding Rank Or Dictionary order of a number

Assignment 1

Multiple Choice Questions Ch-7
CHAPTER 8: (BINOMIAL THEOREM)

Basic & Formula's

Assignment 1

Multiple Choice Questions Ch-8
CHAPTER 9: (SEQUENCE AND SERIES)

Arithmetic Progression

Geometric Progression

Multiple Choice Questions  Ch-9

CHAPTER 10: (STRAIGHT LINE)

Basics & Formula's

Multiple Choice Questions  Ch-10

CHAPTER 11: (CONIC SECTIONS)

Circle & Parabola

Ellipse & Hyperbola

Multiple Choice Questions  Ch-11
CHAPTER 12: (THREE DIMENSIONAL GEOMETRY)

Basics & Formula's

Multiple Choice Questions  Ch-12
CHAPTER 13: (LIMITS AND DERIVATIVES)

Basics & Formula's

Assignment

Multiple Choice Questions  Ch-13

CHAPTER 14: (MATHEMATICAL REASONING'S)

Basics & Formulas

Multiple Choice Questions Ch-14
CHAPTER 15: STATISTICS (Deviation & Variance )

Basics & Formula's

Multiple Choice Questions  Ch-15
CHAPTER 16: (PROBABILITY)

Probability Part -1

Multiple Choice Questions  Ch-15

## STUDY MATERIAL CLASS 11

Sample Papers For Practice (Previous)
DAV Board QP(Previous)
DAV School QP

DAV BOARD Sample Papers - 2020-21

1. good material, very useful

2. 