Example 16 - Chapter 14 Class 11 Mathematical Reasoning
Last updated at May 29, 2018 by Teachoo
Transcript
Example 16 By giving a counter example, show that the following statement is false. If n is an odd integer, then n is prime. Let n = 9 Here, n = 9 is odd But n = 9 is not prime Hence the given statement is false
Proving not true/false (by giving counter examples)
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.