Question

verify a×b = b×a for a= -20 and b= -7

Answer 1

-20×-7=-7×-20
140 = 140

hence property is satisfied.....
I HOPE I HELPED YOU.....

Answer 2

$a x b = b x a$

Taking LHS:-

put a = -20 and, b = -7

a x b = -20 x -7 = 140

Now, Taking RHS:-

put a = -20 and, b = -7

b x a = -7 x -20 = 140

LHS = RHS

Hence proved.......

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