Question

67 In an acute angled triangle if Sin CA+B-C) EL and cos CB+(-A)- 1 2 V2 find, LA, LB and LC 1> prove that.- COSA - sina = cosa-SYON Ittana HOTA As I b Coso = a. then Prove that cosec of othta VB-a

11th - 12th Class

Maths

Solution

4.0 (1 ratings)

Post 1 question ben pic. According to gule and specify ques ind [ frac{cos A}{1+frac{sin A}{cos A}}-frac{sin A}{1+frac{cos A}{sin A}} ] ( =frac{cos ^{2} A}{cos A+sin A}-frac{sin ^{2} A}{sin A+cos A}=frac{operatorname{Cos}^{2} A-sin ^{2} A}{min A+C B A} ) ( varepsilon ) [ text { is } A-sin A ] Proved