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Last updated at March 9, 2017 by Teachoo

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Example 5 Find the component statements of the following and check whether they are true or not. (i) A square is a quadrilateral and its four sides equal. The component statements are p: A square is quadrilateral. q: A square has all its sides equal. The connecting word is And . We know that a square is quadrilateral Hence p is true We know that square has all its equal Hence q is true Hence both component statement are true Example 5 Find the component statements of the following and check whether they are true or not. (ii) All prime numbers are either even or odd. The component statements are p: All prime numbers are odd numbers. q: All prime numbers are even numbers. The connecting word is or . We know that All prime number are not even Example: 3 is prime not even Hence p is false We know that All prime number are not odd Example: 2 is prime but not odd Hence q is false. Hence ,both the components statement are false. Example 5 Find the component statements of the following and check whether they are true or not. (iii) A person who has taken Mathematics or Computer Science can go for MCA. The component statements are p: A person who has taken Mathematics can go for MCA. q: A person who has taken computer science can go for MCA Here the connecting word is or . We know that A person can for MCA if he has mathematics Hence p is true. We know that a person can go for MCA if he has taken Computer Science Hence q is true. Hence both the component statement are true Example 5 Find the component statements of the following and check whether they are true or not. (iv) Chandigarh is the capital of Haryana and UP. The component statements are p: Chandigarh is the capital of Haryana. q: Chandigarh is the capital of UP. Here the connecting word is and We know that capital of Haryana is Chandigarh Hence p is true. We know that the capital of UP. is not Chandigarh Hence q is false Example 5 Find the component statements of the following and check whether they are true or not. (v) 2 is a rational number or an irrational number. The component statements are p: 2 is a rational number. q: 2 is an irrational number. Here the connecting word is or . We know that 2 is not rational number Hence p is not true. We know that 2 is an irrational number Hence q is not true. Example 5 Find the component statements of the following and check whether they are true or not. (vi) 24 is a multiple of 2, 4 and 8. The component statements are p: 24 is a multiple of 2. q: 24 is a multiple of 4. r: 24 is a multiple of 8. The connecting words are and . We know that 24 is a multiple of 2 (24 = 2 12) Hence p is true We know that 24 is a multiple of 4 (24 = 4 6) Hence q is true We know that 24 is a multiple of 8 (24 = 8 3) Hence r is true All three statement true

Examples

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Not in Syllabus - CBSE Exams 2021

Example 2 Not in Syllabus - CBSE Exams 2021

Example 3 Not in Syllabus - CBSE Exams 2021

Example 4 Not in Syllabus - CBSE Exams 2021

Example 5 Important Not in Syllabus - CBSE Exams 2021 You are here

Example 6 Not in Syllabus - CBSE Exams 2021

Example 7 Important Not in Syllabus - CBSE Exams 2021

Example, 8 Important Not in Syllabus - CBSE Exams 2021

Example 9 Not in Syllabus - CBSE Exams 2021

Example 10 Not in Syllabus - CBSE Exams 2021

Example 11 Not in Syllabus - CBSE Exams 2021

Example 12 Not in Syllabus - CBSE Exams 2021

Example 13 Important Not in Syllabus - CBSE Exams 2021

Example 14 Important Not in Syllabus - CBSE Exams 2021

Example 15 Not in Syllabus - CBSE Exams 2021

Example 16 Not in Syllabus - CBSE Exams 2021

Example 17 Not in Syllabus - CBSE Exams 2021

Example 18 Important Not in Syllabus - CBSE Exams 2021

Example 19 Important Not in Syllabus - CBSE Exams 2021

Example 20 Important Not in Syllabus - CBSE Exams 2021

Chapter 14 Class 11 Mathematical Reasoning

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About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.