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Welcome to SURESH TUTORIALS…!

The role of zero:

            can you find a number, which when added to a number ½ gives the same number 1/2 ? when the number zero is added to any rational number, the rational number remains the same.

Example:

1+0=1 and 0+1=1

-2+0=-2 and0 +(-2)=-2

1/2+0=1/2 and 0+ 1/2= 1/2

For this reason we call ‘0’ as an identity element of addition or “additive identity”.

 

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