Question

verify that A+b=b+a by taking,a=2/-7,b=4/-21
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Answer 1

a = 2/-7 and b = 4/-21

Left hand Expression:

a + b = 2/-7 + 4/-21

= (-6 -4)/21

= -10/21

Right hand Expression:

b + a = 4/-21 + 2/-7

= (-4 - 6)/21

= -10/21

Since, Right hand Expression = Left hand Expression.

Thus, It is verified that (a + b) = (b + a)!

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