CHAPTER 6 SQUARE AND SQUARE ROOTS
- Square Number: If a natural number m can be expressed as n2, where n is also a natural number then m is a square number.
- Properties of square numbers:
- All square numbers end with 0, 1, 4, 5, 6 or 9 at unit’s place.
- Square numbers have only even number of zeros at the end.
- Square root: If a natural number m can be expressed as n2, where n is also a natural number then n is the square root of m.
- There are two integral square roots of a perfect square number.
- Positive square root of a number is denoted by the symbol √
- Methods of finding square root:
- Through repeated subtraction
- Through prime factorization
- Through division method