document.write( "Question 987912: If a,b,c parallel line. then prove that a(1/b + 1/c), b(1/c + 1/a), c(1/a + 1/b) in parallel area.\r
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Algebra.Com's Answer #608602 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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