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    				| 1. | आव्यूहों के परिवर्त तथा सहखंडज निकाले : `[(sec theta ,"cosec"theta ),(sin theta ,cos theta)]` | 
| Answer» `[(sec theta , sin theta),("cosec" theta ,cos thet )],[(cos theta ,"cosec"theta ),(-sin theta ,sec theta)]` | |