Chapter- 11 Trigonometry | Class 10 | Complete Exercise-11.1 Detailed Solution | Gyan Sagar Class 10 скачать в хорошем качестве

Chapter- 11 Trigonometry | Class 10 | Complete Exercise-11.1 Detailed Solution | Gyan Sagar Class 10

Chapter - 11 Trigonometry Exercise - 11.1 1. In right angled triangle ABC, 8 cm, 15 cm and 17 cm are the lengths of AB, BC and CA respectively. Then, find sin A, cos A and tan A. 2. The sides of a right angled triangle PQR are PQ = 7 cm, PR = 25 cm and ∠Q = 90° respectively. Then find, Tan P - Tan R. 3. In a right angled triangle ABC with right angle at B, in which a = 24 units, b = 25 units and ∠BAC = θ. Then, find cos θ and tan θ. 4. If cos A = 12/13 , then find Sin A and Tan A. (∠A less than 90°). 5. If 3 tan A = 4, then find Sin A and Cos A. 6. In ΔABC and ΔXYZ, if ∠A and ∠X are acute angles such that cos A = cos X then show that ∠A = ∠X. 7. Given Cot θ =7/8 , then evaluate (i) (1 + Sinθ)(1 - Sinθ) / (1 + Cosθ)(1 - Cosθ) (ii) (1 + Sinθ) / Cosθ 8. In a right angled triangle ABC, right angle is at B. If Tan A = √3, then find the value of (i) Sin A Cos C + Cos A Sin C (ii) Cos A Cos C - Sin A Sin C 📌 Chapter - 11, Trigonometry YouTube playlist - https://tinyurl.com/2s3c83ur 📌 Chapter - 11, Ex-11.1 YouTube playlist - https://tinyurl.com/3e83h55e 📌 Chapter - 11, Ex-11.2 YouTube playlist - https://tinyurl.com/27jccnem 📌 Chapter - 11, Ex-11.3 YouTube playlist - https://tinyurl.com/2zufy4bw 📌 Chapter - 11, Ex-11.4 YouTube playlist - https://tinyurl.com/3t9m8wns Hope you understood the solutions, share it with your friends too.