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Mathematics 15 Online
OpenStudy (anonymous):

Simplify the expression completely...

OpenStudy (anonymous):

\[[(b/a) - (a/b)]\div[(1/a) - (1/b)]\]

OpenStudy (anonymous):

=((b^2-a^2)/ab )÷(b-a)/ab = = (b-a)(b+a)/ab × ab/(b-a) = (b+a)

OpenStudy (anonymous):

can you tell me what you did?

OpenStudy (anonymous):

i understand it now, thank you :)

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