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what are variables ?

 

A variable is a symbol that represent a quantity in an algebraic expression. A variable can take any value.The letters x, y, z etc are used to denote variables.

Example:

The length of sides of a triangle are variables, since the length of the sides can take different values. But, the number of sides in a triangle is constant(fixed), since every triangle has three sides.

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 In algebra, we use letters of the English alphabet which can be assigned any value according to the requirement. So these such letters are known as variables.

Example:- a, b, x, n, z 

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Dear Student!

A variable is a symbol that represent a quantity in an algebraic expression. A variable can take any value.The letters x, y, z etc are used to denote variables.

Example:

The length of sides of a triangle are variables, since the length of the sides can take different values. But, the number of sides in a triangle is constant(fixed), since every triangle has three sides.

Cheers!

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