Math, asked by hoshini92, 11 months ago

what is the value if (-ab+ba)

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Answered by hrn21agmailcom

1

Answer:

(c)

Step-by-step explanation:

(A-B)(A+B) = A(A+B) - B(A+B)

= AA + AB - BA - BB

= A^2 -B^2 +(AB - BA)

hence....

(AB - BA) = 0

means...

AB = BA

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