# Ex 14.4,3 - Chapter 14 Class 11 Mathematical Reasoning

Last updated at May 29, 2018 by Teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 14.4,3 Write each of the following statements in the form if-then (i) You get a job implies that your credentials are good. If you get a job, then your credentials are good. (ii) The Banana trees will bloom if it stays warm for a month. If the banana tree stays warm far a month, then it will bloom. (iii) A quadrilateral is a parallelogram if its diagonals bisect each other. If diagonals of quadrilateral bisect each other, then it is a parallelogram. (iv) To get an A+ in the class, it is necessary that you do all the exercises of the book. It you get A in the class, then you have done all the exercises in the book.

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.