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सिद्ध कीजिए की ` ( cos ( 90^(@) +theta) sec ( -theta ) tan ( 180^(@) - theta ) )/( sec ( 360^(@) -theta ) sin ( 180^(@) + theta ) cot( 90^(@) -theta ) ) =- 1 ` |
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Answer» बायाँ पक्ष `" " =(cos(90^(@)+theta)sec(-theta)tan(180^(@)-theta))/(sec(360^(@)- theta)(180^(@)+theta)cot(90^(@)-theta))` `=((-sin theta)sec theta(-tan theta))/(sec theta(-sin theta)tan theta)` `=(sin theta sec theta tan theta)/(-sec theta sin theta tan theta)` `=-1=` दायाँ पक्ष |
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