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यदि ` sqrt((1-x^(2)))+ sqrt((1-y^(2)))= a(x-y) ,` तब `(dy)/(dx) =`A. ` sqrt(((1-y^(2))/(1-x^(2))))`B. ` sqrt(((1-x^(2))/(1-y^(2))))`C. ` sqrt((1-x^(2))(1-y^(2)))`D. इनमें से कोई नहीं |
| Answer» Correct Answer - A | |