## **REAL NUMBER** **MATHEMATICS**

**REAL NUMBER** **SSC PUBLIC EXAMINATION **

**CHAPTER WISE DIVISIONOF SYLLABUS**

**PAPER – I**

**Definition of Real Number : **

- Positive or negative, Large or small, whole numbers or decimal numbers are all
**Real Number**. - They are called “ Real Numbers ” because they are not Imaginary Numbers.
- The type of numbers we normally use , such as 1, 15.82, -0.1, ¾, etc…

**Definition of Imaginary Numbers :**

- A

number that when squared gives a negative result. - When

we square a Real Number ( multiply it by itself ) we always get a positive, or

zero, result. For example 2 X 2 = 4, and ( -2 ) X (-2 ) = 4 as well.

In mathematics,

a real number is a value of a continuous quantity that can represent a distance

along a line.. The real numbers include all the rational numbers, such as the

integer -5 and the fraction 4/3, and all the irrational numbers, such as the

square root of 2, an irrational algebraic.

**ABOUT MATHEMATICIAN**

**JOHN NAPIER ( 1550 – 1617 ) :**

JOHN NAPIER is best known as the discoverer of logarithms. He also invented the so – called “ **Napier’s bones** “ and made common the use of the decimal point in arithmetic and mathematics.

**Born :**1550, Merchiston Tower, Edinburgh, Scotland.**Died :**4^{th}April 1617 ( aged 66 – 67 ), Edinburgh, Scotland.**Fields :**Mathematician, Physicist, Astronomer.**Known for :**Logarithm, Napier bones, Decimal notation.**Nick Name :**marvelous Merchiston- Napier bones are used for multiplications , divisions and to extract square roots of given numbers.

S.NO. | REAL NUMBERS | |

1 | EXERCISE – 1 .1 | |

2 | EXERCISE – 1 . 2 | |

3 | EXERCISE – 1 . 3 | |

4 | EXERCISE– 1 . 4 | |

5 | EXERCISE– 1 . 5 | |

6 | EXERCISE– 1 . 6 |

**plz visit to 10th class maths syllabus**