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Question

Verify a(b)=a+b for the following values of aand b.

a=21,b=18


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Solution

Given: a=21,b=18

We have to Verify a(b)=a+b

Step 1: Find the value of L.H.S for a=21,b=18

L.H.S

=a(-b)=21-(-18)

=21-(-18)=21+18

=21+18=39

Step 2: Find the value of R.H.S for a=21,b=18

R.H.S

=a+b=21+18

=21+18=39

So, L.H.S = R.H.S

Hence, a(b)=a+b, holds true for a=21,b=18


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