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If (2 + √5) ÷ (2 - √5) = x and (2 - √5) ÷ (2 + √5) = y; find the value of x2 - y2 |
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Answer» If (2 + √5) ÷ (2 - √5) = x and (2 - √5) ÷ (2 + √5) = y; find the value of x2 - y2 |
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