Prove that cot A – cos A/cot A + cos A= cosec A – 1/cosec A + 1 - Sarthaks eConnect | Largest Online Education Community
prove (sin a+cos a)(tan a+cot a)=sec a+cosec a - Sarthaks eConnect | Largest Online Education Community
SOLUTION: (1+〖tan〗^2 θ)/(1+〖Cot〗^2 θ)=((1-tan A)/(1-Cot A ))^2
![i) (1 + tan A)/ sin A + (1 + cot A)/ cos A = 2 (sec A + cosec A) (ii) sec4 A – tan4 A = 1 + 2 tan2 A - Noon Academy i) (1 + tan A)/ sin A + (1 + cot A)/ cos A = 2 (sec A + cosec A) (ii) sec4 A – tan4 A = 1 + 2 tan2 A - Noon Academy](https://cdn1.byjus.com/wp-content/uploads/2020/05/ml-aggarwal-solutions-for-class-10-chapter-18-38.png)