28/√28-√7
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Posted by Fakhrealam Khan 3 years, 5 months ago
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Sia ? 3 years, 5 months ago
28/√28-√7 => 28(√28+√7)/(√28-√7)(√28+√7) => 28/21(√28+√7) => 4/3(2√7+√7) => 4/3(3√7) => 4√7.
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