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The Brainliest Answer!
2015-10-24T08:51:44+05:30
For equal roots ( b-c )2 = 4 ( a-b) ( c-a )
b2 + c2 - 2bc = 4 ( ac -a2 - bc + ab )
4a2 + b2 + c2 -4ab + 2bc - 4ac = 0
( 2a - b -c )2 = 0
b+c =2a
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