Question

Set of all integers is denoted by _______
(a) N
(b) W
(c) Z
(d) Q

Answer 1

The set of all intergers is denoted by Z

option ( a )

Answer 2

Answer : Z

The set of all integers is denoted by "Z".

Explanation :-

• Integers, Real, natural, rational and irrational numbers are known as set of numbers.

• Set of integers is denoted by the capital letter Z as the word number is known as Zahlen in German.

• It was introduced by French group of mathematicians called N. Bourbaki in 1930's.

• Integers are denoted by the symbol Z and can be written as : Z = { ... -2, -1, 0, 1, 2 ....}

• The numbers which are having with minus sign are known as negative numbers where as the numbers which are having plus sign are known as positive numbers.