Domain & Range of Trigonometric Functions || 11th Class Math || Chapter 11 | New PTB 2025 || Part 1

Описание: In this video, we explain the domain and range of all basic trigonometric functions — sine, cosine, tangent, secant, cosecant, and cotangent — as per Chapter 11 of the Class 11 Mathematics New Book (Punjab Textbook 2025).
You'll learn how to identify valid inputs (domain) and outputs (range) for each function, along with visual explanations using graphs.

📚 Covered Topics:

Domain and Range of Sine and Cosine

Domain and Range of Tangent and Cotangent

Domain and Range of Secant and Cosecant

How to find domain and range from graphs

Important points for board exams

✅ Ideal for students preparing for Class 11 Math (Punjab Board)

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