Скачать или смотреть 👉 NCERT Class 10 Maths | Trigonometry Exercise 8.3 Q4(viii) | Find Value of x | CBSE Board Exam 2026

In this video, we will solve NCERT Class 10 Maths Chapter 8 – Introduction to Trigonometry (Exercise 8.3, Question 4 (viii)) step-by-step.

We’ll find the value of x for which:

(sin A + cosec A)² + (cos A + sec A)² = x + tan² A + cot² A

This is an important question from Trigonometric Identities and is frequently asked in CBSE Class 10 Board Exams.
Watch the full video to learn how to simplify trigonometric expressions easily and score full marks in the Maths Board Exam 2026.

📘 Topics Covered:

Simplification using trigonometric identities

Step-by-step proof and value of x

NCERT Exercise 8.3 Q4(viii) solution

CBSE Class 10 Trigonometry important questions

Board Exam 2026 Preparation

📚 Chapter: Introduction to Trigonometry (Chapter 8)
📆 Exam Year: CBSE Class 10 Board Exam 2026
🧮 Book: NCERT Mathematics

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