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Chapter 7 of 14
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Binomial Theorem

CBSE · Class 11 · Mathematics

Flashcards for Binomial Theorem — CBSE Class 11 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

135 questions60 flashcards5 concepts

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Card 1Basic pattern in binomial expansion

Expand (a + b)^1 and (a + b)^2. What pattern appears in the number of terms?

Answer

Step 1: (a + b)^1 = a + b. Step 2: (a + b)^2 = a^2 + 2ab + b^2. Step 3: The number of terms is 2 in the first expansion and 3 in the second. Answer: The number of terms is one more than the index. So

Card 2द्विपद विस्तार में मूल पैटर्न

(a + b)^1 और (a + b)^2 का विस्तार कीजिए। पदों की संख्या में कौन-सा पैटर्न दिखाई देता है?

Answer

चरण 1: (a + b)^1 = a + b. चरण 2: (a + b)^2 = a^2 + 2ab + b^2. चरण 3: पहले विस्तार में पदों की संख्या 2 है और दूसरे में 3 है. उत्तर: पदों की संख्या सूचकांक से एक अधिक होती है। इसलिए (a + b)^n में n + 1

Card 3Power pattern

Expand (a + b)^3 and check the powers of a and b in each term.

Answer

Step 1: (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3. Step 2: Powers of a go 3, 2, 1, 0. Step 3: Powers of b go 0, 1, 2, 3. Step 4: In every term, the sum of powers is 3. Answer: The power of a decreases by

Card 4घातों का पैटर्न

(a + b)^3 का विस्तार कीजिए और प्रत्येक पद में a और b की घातें जाँचिए।

Answer

चरण 1: (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3. चरण 2: a की घातें 3, 2, 1, 0 होती जाती हैं. चरण 3: b की घातें 0, 1, 2, 3 होती जाती हैं. चरण 4: हर पद में घातों का योग 3 है. उत्तर: a की घात 1 से घटती है औ

Card 5Pascal's triangle

Find the coefficient row for index 4 using the pattern of Pascal's triangle.

Answer

Step 1: Start with row 0: 1. Step 2: Row 1 is 1 1. Step 3: Row 2 is 1 2 1. Step 4: Row 3 is 1 3 3 1. Step 5: Each middle number is the sum of the two numbers above it. Step 6: So row 4 is 1 4 6 4 1. A

Card 6पैस्कल त्रिभुज

पैस्कल त्रिभुज के पैटर्न का उपयोग करके सूचकांक 4 के लिए गुणांक पंक्ति ज्ञात कीजिए।

Answer

चरण 1: पंक्ति 0 से शुरू कीजिए: 1. चरण 2: पंक्ति 1 है 1 1. चरण 3: पंक्ति 2 है 1 2 1. चरण 4: पंक्ति 3 है 1 3 3 1. चरण 5: हर बीच की संख्या उसके ऊपर की दो संख्याओं का योग होती है. चरण 6: इसलिए पंक्ति 4 है

Card 7Direct expansion

Use the binomial theorem to expand (x + 2)^3.

Answer

Step 1: Use (a + b)^n = ^nC0 a^n + ^nC1 a^(n-1)b + ^nC2 a^(n-2)b^2 + ^nCn b^n. Step 2: Here a = x, b = 2, n = 3. Step 3: (x + 2)^3 = ^3C0 x^3 + ^3C1 x^2(2) + ^3C2 x(2^2) + ^3C3(2^3). Step 4: Compute c

Card 8प्रत्यक्ष विस्तार

द्विपद प्रमेय का उपयोग करके (x + 2)^3 का विस्तार कीजिए।

Answer

चरण 1: (a + b)^n = ^nC0 a^n + ^nC1 a^(n-1)b + ^nC2 a^(n-2)b^2 + ^nCn b^n का उपयोग कीजिए. चरण 2: यहाँ a = x, b = 2, n = 3 है. चरण 3: (x + 2)^3 = ^3C0 x^3 + ^3C1 x^2(2) + ^3C2 x(2^2) + ^3C3(2^3). चरण 4:

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What are the important topics in Binomial Theorem for CBSE Class 11 Mathematics?
Binomial Theorem covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Understand the core concepts first, then work through the 135 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
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