Class 10 Maths Real Numbers Exercise 1.1 Question 4
Use Euclid’s division lemma to show that the square of any positive integer is either of form 3m or 3m + 1 for some integer m.
[Hint: Let x be any positive integer then it is of the form 3q, 3q + 1 or 3q + 2. Now square each of these and show that they can be rewritten in the form 3m or 3m + 1.]
Solution : Solution of the Class 10 Maths Real numbers exercise 1.1 question 4 is given in below snapshot. To understand stepbystep explanation in more details then please watch our YouTube video given below.

Real Numbers Chapter 1 Ex 1.1 Intro NCERT Class 10 Maths

Real Numbers  Chapter 1 Ex 1.1 Q  1  NCERT  Maths Class 10th

Real Numbers  Chapter 1 Ex 1.1 Q  2  NCERT  Maths Class 10th

Real Numbers  Chapter 1 Ex 1.1 Q  3  NCERT  Maths Class 10th

Real Numbers  Chapter 1 Ex 1.1 Q  4  NCERT  Maths Class 10th

Real Numbers  Chapter 1 Ex 1.1 Q  5  NCERT  Maths Class 10th