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| 1. |
Cosec^2 theta - cot^2 theta = 1 |
| Answer» cosec^2theta-cot^2theta =1lhs1/sin^2theta=cos^2/sin^2theta by taking lcm we get1-cos^2theta /sin^2theta{1-cos^2theta =sin^2theta}so \'sin^2theta/sin^2theta cancelout u got the answer 1 1 proved | |