(2)Validity of Statements with 'OR' with examples

(1) Validity of Statements with 'AND' with examples

(3) Validity of Statements with 'If-Then' with examples

(4) Validity of Statements with 'If And Only If with examples

Check the validity of the statements given below by the method given against it. p : The sum of an irrational number and a rational number is irrational.

Examples of three detergents are given below. Mark the correct statement following the examples.

What is Mathematical statements? Explain with the example.

Sulpha drugs work like antibiotics but they are not antibiotics . This a valid statement and why ? Give one example each for sulpha drug and antibiotics .

To check th e validity of a statement p by contradiictitin method our initial assumption is

Given below are two statements p:25 is a multiple of 5.q:25 is a multiple of 8. Write the compound statements connecting these two statements with 'And and Or.In both cases check the validity of the compound statement.