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[" Prove that "a:b=(2+sqrt(3)):(2-sqrt(3...

[" Prove that "a:b=(2+sqrt(3)):(2-sqrt(3))" ."],[" If "a,b,c" are in "AP;x" is the GM between "a" and "b;y" is the GM between "b" and "c" ,"],[" (i) "quad " then show that "b^(2)" is the AM between "x^(2)" and "y^(2)" ."]

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