Скачать или смотреть Practice Set-5 (Unsolved) Class 10 Maths Oswal Sample Paper 2025-26 | | 3 Marks MOST Imp Ques

Practice Set-5 (Unsolved) Class 10 Maths Oswal Sample Paper 2025-26 | | 3 Marks MOST Imp Ques

Preparing for the CBSE Class 10 Maths Board Exam 2025–26 and looking for high-scoring 3-mark questions from Oswal Sample Papers?
This video is exactly what you need.
In this video, we solve and explain Practice Sample Paper – Set 5 (Unsolved) from Oswal Class 10 Maths 2025–26, focusing on MOST IMPORTANT 3-MARK QUESTIONS that are frequently asked or repeated in CBSE board exams.
Each question is solved step-by-step, with clear logic, proper diagrams (where required), and exam-oriented explanation, so that students can easily understand how to write answers in the board exam to score full marks.
This video is ideal for: ✔️ Class 10 CBSE students
✔️ Final revision before exams
✔️ Students targeting 90+ in Maths
✔️ Understanding application-based & reasoning questions
📌 QUESTIONS EXPLAINED IN THIS VIDEO
🔹 Tangents to a Circle (Geometry – 3 Marks)
PA and PB are tangents drawn to a circle with centre O from an external point P.
Chord AB makes an angle of 30° with the radius at the point of contact.
If the length of the chord is 6 cm, find:
• Length of the tangent PA
• Length of the radius OA
👉 Concept used: Properties of tangents, right-angled triangle, trigonometry & geometry relation.
🔹 Polynomials – Zeroes & Coefficients
Given polynomial:
7y² − (11/3)y − (2/3)
Find the zeroes of the polynomial and verify the relationship between the zeroes and coefficients.
👉 Important for algebra section and MCQ + short answer questions.
🔹 Trigonometric Identities
Prove that:
(1 − sin A + cos A)² = 2(1 − sin A)(1 + cos A)
👉 Step-by-step identity proof, exam-friendly format.
🔹 Another Important Identity Proof
Prove that:
tan²A + cot²A = sec²A cosec²A − 2
👉 Commonly asked identity for 3 marks.
🔹 Probability – Dice Based Question
Two different dice are thrown together. Find the probability that the numbers obtained:
(i) have a sum less than a given value
(ii) have a product less than 16
(iii) form a doublet of odd numbers

👉 Concept of sample space, favourable outcomes & probability formula explained clearly.


🎯 WHY YOU SHOULD WATCH THIS VIDEO
✔️ Based strictly on Oswal Sample Paper 2025–26
✔️ Covers most expected 3-mark questions
✔️ Board-answer-writing style
✔️ Perfect for last-minute revision
✔️ No shortcuts skipped – full concept clarity

If you are preparing from Oswal Sample Papers, this video will help you understand how to approach unsolved questions confidently in the exam.

📌 Watch till the end to avoid silly mistakes and maximize your score in Maths.

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