Posts

Showing posts from May, 2020

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

Pair of Linear Equations in Two Variables Class 10 Chapter 3

Image
Pair of Linear Equations in Two Variables Basic points and complete explanations of all methods of solving pair of linear equations in two variables, for class X, chapter 3 Mathematics.  Maths Assignment on Chapter 3 Class X : Pair of Linear Equations in Two Variables General pair of linear equations in two variables \[a_{1}x+b_{1}y=c_{1}\]\[a_{2}x+b_{2}y=c_{2}\] There are four methods of solving pair of linear equations in two variables 1) Graphical Method : In this method the point of intersection of two lines on the graph is the solution of two equations. 2) Substitution Method 3) Elimination Method 4) Cross Multiplication Method Types of graphs, nature of solutions, consistency/ inconsistency all are discussed in the following table. Conditions Nature of Solution Type of Graph Consistent /Inconsistent \[\frac{a_{1}}{a_{2}}\neq \frac{b_{1}}{b_{2}}\] Unique Solution Two intersecting lines Consistent \[\frac{a_{1}}{a_{2}}\n

Internal Assessment (Mathematics) For Classes XI and XII

Image
Unit wise distribution of chapters and method of Internal Assessment in Mathematics for CBSE Class XI and XII.  Scheme of evaluation in classes 11 and 12, method of compiling final result and internal assessment for class 11 and 12.  *************************************************************************** CBSE Board divided the Whole Syllabus  into two parts, Part A (Theory Part) and Part B (Internal Assessment).  First of all we discuss about Theory Part A. This part is based upon the academic curriculum decided by the CBSE.  Part A   Theory Examination  [mm = 80] Whole of the syllabus is divided into sixteen chapters and all chapters are divided into six units. This syllabus is completed in 240 Periods(each of 35 min). Total marks in this part is 80. For class XI Unit-wise distribution of  chapters and unit-wise marks are given below. Course Structure Mathematics Class – XI , CBSE Board Mathematics Units Unit Name with chapters and number

Popular Post on this Blog

Lesson Plan Maths Class 10 | For Mathematics Teacher

Lesson Plan Math Class X (Ch-8) | Trigonometry

Lesson Plan Maths Class X (Ch-5) | Arithmetic Progression