Math, asked by MAGGIARK, 1 month ago

a = 1, b=-1, then ab + ba =

Answers

Answered by kwin15

2

Answer:

1(-1) + (-1)1 = (-1 ) + (-1 )= 1+1......by Identity

=2

Answered by Anonymous

2

Answer:

2

Step-by-step explanation:

ab+ba=(1)(1)+(1)(1)

=1+1

=2

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