SOLUTION: Please help!
[(b/a)-(a/b)]/[(1/a)-(1/b)]
I know the answer is a+b but i can't get there. I've tried everything! Please help!
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[(b/a)-(a/b)]/[(1/a)-(1/b)]
I know the answer is a+b but i can't get there. I've tried everything! Please help!
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Question 769045: Please help!
[(b/a)-(a/b)]/[(1/a)-(1/b)]
I know the answer is a+b but i can't get there. I've tried everything! Please help! Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! [(b/a)-(a/b)]/[(1/a)-(1/b)]
I know the answer is a+b but i can't get there.
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= [(b^2-a^2)/(ab)] / [(b-a)/(ab)]
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Invert the denominator and multiply:
= [(b^2-a^2)/(ab)]
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= [(b-a)(b+a)] / (b-a)
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= b+a
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Cheers,
Stan H.
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