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| 1. |
prove that( tanA/secA+1 )+(cotA/cosec+1)=cosecA+secA*cosecA* secA |
| Answer» LHS= (tanA/ secA +1) +(cotA/cosecA+1)=(sinA/cosA×1/cosA)+(cosa/sinA×1/sinA)=sinA+cosA | |