Binomial Theorem — Flashcards
CBSE · Class 11 · Mathematics
60 flashcards for Binomial Theorem (CBSE Class 11 Mathematics) to test yourself on key terms and facts. Part of the CBSE Class 11 Mathematics syllabus.
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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 …
(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…
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 …
(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…
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…
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…
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…
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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