# Example 7 - Chapter 14 Class 11 Mathematical Reasoning

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Example 7 For each of the following statements, determine whether an inclusive Or or exclusive Or is used. Give reasons for your answer. (i)To enter a country, you need a passport or a voter registration card. Since a person can have either passport or voter card or both to the enter country. Here, Or is inclusive. Example 7 For each of the following statements, determine whether an inclusive Or or exclusive Or is used. Give reasons for your answer. (ii) The school is closed if it is a holiday or a Sunday. Since School is closed on holiday as well as on Sunday or both. Here, Or is inclusive. Example 7 For each of the following statements, determine whether an inclusive Or or exclusive Or is used. Give reasons for your answer. (iii) Two lines intersect at a point or are parallel. It is not possible for two lines to intersect and parallel together. Here, Or is exclusive. Example 7 For each of the following statements, determine whether an inclusive Or or exclusive Or is used. Give reasons for your answer. (iv) Students can take French or Sanskrit as their third language. A Student cannot take both French & Sanskrit as their third language. Here, Or is exclusive.

Inclusive and exclusive or

Chapter 14 Class 11 Mathematical Reasoning

Concept wise

- Statements
- Writing negation of statements
- Negation - Checking if true or not
- Finding Compound Statement
- Words 'And' & 'Or'
- Inclusive and exclusive or
- Quantifiers
- Contrapositive and converse
- If then
- If and only if
- Proving not true/false (by giving counter examples)
- Proving True - If and only if
- Proving True - By Contrapositive
- Proving True - By Contradiction
- Necessary and sufficient condition

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.