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| 1. |
यदि ` x=a sin 2theta (1+ cos 2theta ),y =bcos 2theta (1-cos 2theta ), ` तब ` dy//dx=`A. ` (btan theta )/(a) `B. ` (atan theta )/(b ) `C. ` (bcot theta )/(a) `D. इनमें से कोई नहीं |
| Answer» Correct Answer - A | |