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" 23.यदि "x=(sqrt(5)+sqrt(2))/(sqrt(5)-s...

" 23.यदि "x=(sqrt(5)+sqrt(2))/(sqrt(5)-sqrt(2))" व "y=(sqrt(5)-sqrt(2))/(sqrt(5)+sqrt(2))," तब "3x^(2)+4xy-3y^(2)" का मान ज्ञात कीजिए। "

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