NUMBERS

Introduction | | Classification OF Number system| | Natural Number, | |Whole number || Integer number | |Real number | |Rational- Irrational Number | |Complex Number | | Imaginary number | | Prime-Composite Number

Which of the following are true for an element ? (i) Atomic number = number of protons + number of electrons (ii) Mass number = number of protons + number of neutrons (iii) Atomic number = number of protons = number of neutrons (iv) Atomic number = number of protons = number of electrons

The sum of a rational and an irrational number is a/an _________ . A)Rational number B)Natural number C)Irrational number D)Complex number

Contrapositive of the statement. If the squares of two numbers are equal then the numbers are equal is (A) If the squares of two numbers are equal then the numbers are equal (B) If the squares of two numbers are not equal then the numbers are not equal (C) If two numbers are not equal then the square of the numbers are not equal (D) If squares of two numbers are equal then the numbers are to equal

Are the following statements true or false? Give reasons for your answer? Every whole number is a natural number Every integer is a rational number.Every rational number is an integer.Every natural number is a whole number.Every integer is a whole number Every rational number is a whole number

Consider the following statements: The number 23 is A. a prime number B. a real number C.an irrational number D. a rational number of these statements

A number is increased by 20% and again increased by 20%. By what percentage number number is decreased to get the number equal to initial number.

Algebra OF complex number|| Conjugate OF complex number || Square root OF complex number