What have we discussed?
1. We looked at patterns of making letters and other shapes using matchsticks. We
learnt how to write the general relation between the number of matchsticks
required for repeating a given shape. The number of times a given shape is
repeated varies; it takes on values 1,2,3,.... It is a variable, denoted by some
letter like n.
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An unknown quantity can be represented by a variable. Usually, a variable is any letter from the English alphabet that represents an unknown quantity. The relation between the unknown quantity and other quantities can be expressed with the help of the variable. The value of the variable varies with the given condition on the variable.
An unknown quantity can be represented by a variable. Usually, a variable is any letter from the English alphabet that represents an unknown quantity. The relation between the unknown quantity and other quantities can be expressed with the help of the variable. The value of the variable varies with the given condition on the variable.
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