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[" 4.If "a^(2)+ab^(2)+16c^(2)=2(3ab+6kc+...

[" 4.If "a^(2)+ab^(2)+16c^(2)=2(3ab+6kc+4ac)" where "a" ,bitat "],[" are proper numbers,then "a,b" ,c will be in "],[[" (a) "AP," (b) "G" ."P],[" (c) "11P," (d) None of these "]]

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