# Example, 8 - Chapter 14 Class 11 Mathematical Reasoning (Deleted)

Last updated at Feb. 17, 2020 by Teachoo

Last updated at Feb. 17, 2020 by Teachoo

Transcript

Example, 8 Identify the type of “Or” used in the following statements and check whether the statements are true or false: (i)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. We know that 2 is irrational number as it cant be Written in form 𝑝𝑞 Hence first statement is false and second statement is true Since the connecting world to ‘Or’ So the compound statement is true It is exclusive or as 2 is either rational or not It cant be both. Example, 8 Identify the type of “Or” used in the following statements and check whether the statements are true or false: (ii) To enter into a public library children need an identity card from the school or a letter from the school authorities. The component statements are p: To get into a public library children need an identity card. q: To get into a public library children need a letter from the school authorities. Children can enter the library it they have an identity card or the letter, as well as both. Hence, ‘Or’ is inclusive. Both p & q statements are true. & the connecting word is ‘Or’ Hence component statement are true Example, 8 Identify the type of “Or” used in the following statements and check whether the statements are true or false: (iii) A rectangle is a quadrilateral or a 5-sided polygon. The component statement are: p : A Rectangle is a quadrilateral. q : A Rectangle is a 5–sided polygon. A rectangle can be quadrilateral . But cannot be 5 – sided polygon. Hence ‘or’ is exclusive. We know that a rectangle is a quadrilateral . Hence p is true. A rectangle can not be 5 - sided polygon as it has 4 sides Hence q is false. The connecting word is ‘Or’ Hence compound statement is true.

Examples

Example 1
Important
Deleted for CBSE Board 2022 Exams

Example 2 Deleted for CBSE Board 2022 Exams

Example 3 Deleted for CBSE Board 2022 Exams

Example 4 Deleted for CBSE Board 2022 Exams

Example 5 Important Deleted for CBSE Board 2022 Exams

Example 6 Deleted for CBSE Board 2022 Exams

Example 7 Important Deleted for CBSE Board 2022 Exams

Example, 8 Important Deleted for CBSE Board 2022 Exams You are here

Example 9 Deleted for CBSE Board 2022 Exams

Example 10 Deleted for CBSE Board 2022 Exams

Example 11 Deleted for CBSE Board 2022 Exams

Example 12 Deleted for CBSE Board 2022 Exams

Example 13 Important Deleted for CBSE Board 2022 Exams

Example 14 Important Deleted for CBSE Board 2022 Exams

Example 15 Deleted for CBSE Board 2022 Exams

Example 16 Deleted for CBSE Board 2022 Exams

Example 17 Deleted for CBSE Board 2022 Exams

Example 18 Important Deleted for CBSE Board 2022 Exams

Example 19 Important Deleted for CBSE Board 2022 Exams

Example 20 Important Deleted for CBSE Board 2022 Exams

Chapter 14 Class 11 Mathematical Reasoning (Deleted)

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.