cot⁻¹(ab+1)/(a−b) Type Question | Class 12 Maths | Chapter 2 | Pritam Sir

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📘 बिहार बोर्ड इंटरमीडिएट 2026 | Chapter 2 – Inverse Trigonometric Function | Extra Question Explained

🔵 Question Covered:

cot⁻¹((ab + 1)/(a − b)) + cot⁻¹((bc + 1)/(b − c)) + cot⁻¹((ca + 1)/(c − a)) = ?

Welcome to Maa Saraswati Mathematics Classes (MSMC)!
In this video, Pritam Sir brings you a very important and tricky extra question from Chapter 2 – प्रतिलोम त्रिकोणमितीय फलन (Inverse Trigonometric Functions). This question is extremely important for Bihar Board Intermediate 2026 Exam preparation, especially for those aiming for full marks in Mathematics.

🟢 Why Watch This Video? ✅ Covers a unique HOTS (Higher Order Thinking Skills) question
✅ Step-by-step explanation in Hindi
✅ Clear concept building for cot⁻¹ identities
✅ Best for Bihar Board Class 12th Students
✅ Boost your preparation with smart and shortcut methods

📚 Topics Covered:

Properties of Inverse Trigonometric Functions

Identities involving cot⁻¹(x)

Algebraic manipulation

Tricks to solve composite inverse trigonometric expressions

Multiple angle concepts (if applicable)
🎯 This question is not just important for exams but also builds your strong foundation for JEE, NDA, and other competitive exams where trigonometry is crucial.

📌 Target Audience:

Class 12th Bihar Board Students (2025-26)

Students preparing for competitive exams

Anyone looking to master inverse trigonometric identities
💬 Comment Below:
If you want more such extra questions or have any doubts related to this chapter!

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📘 Tags:
#BiharBoard2026 #InverseTrigonometry #Class12Maths #MSMC #ExtraQuestionChapter2 #cotInverse #PritamSir #BiharBoardMaths #TrickyMathsQuestion #Class12ImportantQuestion

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