🔥CLASS 10 MATHEMATICS MOST IMPORTANT QUESTIONS | CBSE BOARD EXAM 2026 | TRIGONOMETRY | 100%@Study21A

🔥 CLASS 10 MATHEMATICS MOST IMPORTANT QUESTIONS | CBSE BOARD EXAM 2026 | TRIGONOMETRY | 100% BOARD EXAM SURE QUESTIONS --- --- 📌 Welcome to Study21a – Your Final Destination for Class 10 CBSE Mathematics Success! This video contains Class 10 Maths MOST IMPORTANT Questions for CBSE Board Exam 2026, specially made for students who want FULL MARKS in Board Exam. In this video, we have covered Trigonometry, Algebra, Coordinate Geometry, Polynomials, Pair of Linear Equations, Arithmetic Progression, Quadratic Equations, Mensuration, Statistics, and Surface Areas & Volumes along with model questions, board exam patterns, and smart tricks to score 95+ in Maths easily. The question discussed in this video — “Given that sin A + sin²A = 1, find the value of (cos²A + cos⁴A)” — is a very important and frequently repeated CBSE Board Exam question (CBSE 2020 Outside Delhi Set 1). Such questions help in boosting accuracy, learning trigonometric identities, and improving logical steps in proofs. --- 🎯 What You Will Learn in This Video ✔️ Most expected Class 10 Maths questions for CBSE Board Exam 2026 ✔️ Step-by-step solutions with complete reasoning ✔️ Sure-shot board exam pattern questions ✔️ Tricks to solve trigonometric identities within 10 seconds ✔️ Formulas revision + shortcut techniques ✔️ Time management tips for solving the Maths question paper ✔️ Preparation strategy for scoring full marks --- 📘 Chapters Covered in This Video ⏳ Chapter 01 – Real Numbers ⏳ Chapter 02 – Polynomials ⏳ Chapter 03 – Pair of Linear Equations in Two Variables ⏳ Chapter 04 – Quadratic Equations ⏳ Chapter 05 – Arithmetic Progression ⏳ Chapter 06 – Triangles ⏳ Chapter 07 – Coordinate Geometry ⏳ Chapter 08 – Introduction to Trigonometry ⏳ Chapter 09 – Applications of Trigonometry ⏳ Chapter 10 – Circles ⏳ Chapter 11 – Constructions ⏳ Chapter 12 – Area Related to Circles ⏳ Chapter 13 – Surface Areas and Volumes ⏳ Chapter 14 – Statistics ⏳ Chapter 15 – Probability This video specially highlights trigonometry formulas & board exam important derivations like: 🔹 sin²A + cos²A = 1 🔹 tanA = sinA / cosA 🔹 sec²A = 1 + tan²A 🔹 cot²A + 1 = cosec²A 🔹 Reduction formulas + identity tricks --- ✨ Why This Video Is Important for CBSE Board Exam 2026 CBSE Board repeats many questions every year with slight changes in values. The expression (cos²A + cos⁴A) has been asked multiple times in boards and pre-boards. Mastering such questions boosts confidence and ensures 100% marks in Section-B and Section-C. --- 📌 Who Should Watch This Video 🔹 Class 10 CBSE Students (2026 Board Exam) 🔹 Students preparing for Pre-Boards / Unit Tests / Term Exams 🔹 Teachers searching for board-based questions 🔹 Students confused about Trigonometry identities --- 💡 Board Exam Tips Shared in the Video ✔️ Attempt 6-8 Marks Application Questions First ✔️ Write proper steps + formula + substitution + final answer ✔️ Do not leave any question unattempted – even rough calculation may bring marks ✔️ For calculations, show full process – avoid shortcuts in final exam ✔️ Learn to manage 90-minute full paper practice before exam --- 📂 Free Study Material Available in the Channel 📎 Full Maths Formula PDF 📎 Board-Based Sample Questions 📎 Chapterwise MCQs for Term Tests 📎 Case-Study Questions with Solutions 📎 PYQ 2015-2024 Solved Papers --- 🔔 Kindly Support Us If you like the video, please 👍 LIKE 💬 COMMENT your class and queries 📌 SHARE with friends 👆 SUBSCRIBE to Study21a for daily updates for Classes 6–10 Your support motivates us to upload more videos daily for students. --- ❤️ Motivational Message “Believe in yourself! Even the toughest maths problem becomes easy when you practice daily. You are capable of scoring full marks — and YOU WILL do it in CBSE BOARD EXAM 2026 💯” GOOD LUCK CHAMPIONS! — Study21a Team ---