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यदि e दीर्घवृत (x^(2))/(a^(2))+(y^(2))/(...

यदि e दीर्घवृत `(x^(2))/(a^(2))+(y^(2))/(b^(2))=1(altb)` की उत्केंद्रता हो तब

लिखित उत्तर

Verified by Experts

The correct Answer is:
`e=(1)/(sqrt(2))`
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