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March 13th, 2013, 10:31 AM   #1
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Ratio and Proportion

If , prove that x+y+z=0

Can we proceed like this : Let = we get : Please guide further .....
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March 13th, 2013, 11:10 AM   #2
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Re: Ratio and proportion






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March 13th, 2013, 11:22 AM   #3
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If each fraction is equal to n,
x + y + z = ((b-c)(b+c-2a) + (c-a)(c+a-2b) + (a-b)(a+b-2c))n
             = ((b-c)(b-a) + (b-c)(c-a) + (c-a)(c-b) + (c-a)(a-b) + (a-b)(a-c) + (a-b)(b-c))n
             = 0.
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