Friday, 17 April 2020

Mathematics for Standard X

Chapter no. 1 Real numbers ( Exercise 1.3 )

Today we are going to learn the most important topic according to board examination that how to prove root 2 ,root 3, root 5, 3+ 2 root 5 are irrational  numbers from chapter 1 of your Mathematics textbook.

We know that Irrational numbers and coprime numbers.

1) Irrational numbers :- a) The Non-perfect square number present in square root symbol are Irrational numbers.
 b) The Non-terminating and non-recurring numbers are called Irrational numbers.

2) Coprime numbers  :- When two numbers do not have any common factor other than 1 between them they are called Coprime numbers.
e.g  3 and 5
   3 = 1, 3
   5 = 1, 5

Now observe the examples




Now observe the Exercise 1.3 and solve in your own step




The video of solutions of how to prove the number , irrational numbers are available in following link.




Assignment 
Solve  Exercise 1.3 and also Assignment. 


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