यदि \((x^2+\frac{1}{x^2})=7\) है, और 0 < x < 1 है, तो \(x^2-\frac{1}{x^2} \) का मान ज्ञात कीजिए।

1
3√5
2
4√3
3
-4√3
4
-3√5

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