0 deepaksoniGuru Asked: March 15, 2021In: ICSE (i) sin A/ (1 + cos A) = (1 – cos A)/ sin A (ii) (1 – tan2 A)/ (cot2 A – 1) = tan2 A (iii) sin A/ (1 + cos A) = cosec A – cot A 0 This is an important question taken from the Book ML Aggarwal, Avichal publication, class 10th and, chapter 18 We have to ...Read more class10 mathsml aggarwaltrigonometric identities