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Chapter:1.RELATION Exercise:1A Question:1 Findthedomaina Solution: dom(R)={-1,1,-2,2}andrange(R)={1,4} Question:2 LetR={(a,a Solution: range(R)={827} Question:3 LetR={(a,a Solution: (i)R={(2,8),(3,27),(5,125),(7,343)} (ii)dom(R)={2,3,5,7} (iii)range(R)={8,27,125,343} Question:4 LetR=(x,y): Solution: {3,2,1} Question:5 LetR={(a,b):a Solution: dom(R)={3,6,9}andrange(R)={3,2,1} Question:6 LetR={(a,b): Solution: dom(R)={-2,-1,0,1,2}andrange(R)={3,2,1,0} Question:7 Let Question:8 LetR={(a,b): Solution: dom(R)={1,2,3}andrange(R)={6,7,8} Question:9 LetSbetheset

Page 1 EXERCISE: 1 A. MULTIPLE CHOICE TYPE (Choose the best option out of the four alternatives a, b, c, and d) Question 1: The Chromatin material is formed forms of (a) DNA only (b) DNA and histones (c) Histones only (d) Nucleotides Solution 1: (b) DNA and Histones Question 2: The term “chromosomes” literally

EXERCISE: 1 A. MULTIPLE CHOICE TYPE (Choose the best option out of the four alternatives a, b, c, and d) Question 1: The Chromatin material is formed forms of (a) DNA only (b) DNA and histones (c) Histones only (d) Nucleotides Solution 1: (b) DNA and Histones Question 2: The term “chromosomes” literally means (a)

Chapter 1. Rational and Irrational Numbers Selina ICSE Solutions for Class 10 Maths Chapter 1 Rational and Irrational Numbers Exercise 1(A) Solution 1: Solution 2: Solution 3:

Data Handling The word statistics is used for two different meanings. In the singular sense, it is used as a science or a subject which deals with the collection, classification, tabulation, representation and interpretation of the data. In the plural sense, it is sometimes used for the numerical facts collected in the form of numbers.

HOTS (Higher Order Thinking Skills) Q.1. How was the taxation policy responsible for the French Revolution? Ans. (i) The French were divided into three estates—First, Second and Third estates respectively. (ii) First and Second estates which formed 10 per cent of the total populationwere clergy and nobles. They enjoyed all privileges. (iii) Rest of the