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| 1. |
prove that:- CosA * cotA/ 1- sinA = 1 + cosecA |
| Answer» Cos^2A /sinA(1- sinA)= (1- sinA )^2 / sinA (1-sinA)= (1-sinA )(1+sinA)/sinA(1-sinA)=1+sinA/sinA =1/sinA +sinA/sinA =cosecA +1 | |