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दीर्घवृत्त `(x^(2) )/(a^(2)) +(y^(2)) /(b^(2))=1` का क्षेत्रफल -A. `piab `B. ` (pi(a^(2)+b^(2)))/( 4)`C. `pi(a+b) `D. इनमें से कोई नहीं |
| Answer» Correct Answer - A | |