Скачать или смотреть Class 10 Trigonometry | NCERT Exercise 8.2 Question 1 (v) | Full Explanation

In this video, we solve NCERT Class 10 Maths Exercise 8.2, Question 1 (v), where we evaluate trigonometric expressions using standard values of trigonometric ratios. This is an important part of Chapter 8 – Introduction to Trigonometry, and these types of questions are frequently asked in CBSE Board Exams.

🧮 Questions Covered (Ex 8.2, Q1):
(i) sin 60° cos 30° + sin 30° cos 60°
(ii) 2 tan² 45° + cos² 30° – sin² 60°
(iii) cos 45° / (sec 30° + cosec 30°)
(iv) (sin 30° + tan 45° – cosec 60°) / (sec 30° + cos 60° + cot 45°)
(v) (5 cos² 60° + 4 sec² 30° – tan² 45°) / (sin² 30° + cos² 30°)

📌 What You’ll Learn:
✔ How to use standard values of sin, cos, tan, sec, cosec, cot
✔ Step-by-step simplification of expressions
✔ Tricks to avoid calculation mistakes
✔ Methods to score full marks in board exams

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