Practice Set 2.4 Class 9 Algebra | Real Numbers & Surds Solutions | SSC Board
sanket bhandari
0:00 / 0:00
Practice Set 2.4 Class 9 Algebra | Real Numbers & Surds Solutions | SSC Board
73 просмотра · 2 нед. назад
sanket bhandari
62 подписчика
73 просмотра · 2 нед. назад
Class 9th Maharashtra State Board (SSC) Mathematics Part 1 (Algebra) - Chapter 2: Real Numbers. Complete step-by-step solutions for Practice Set 2.4 (Binomial Quadratic Surds & Rationalizing the Denominator).
📌 Timestamps / Chapters:
00:00 - Q1 (1) Multiply: √3(√7 - √3)
00:00:34 - Q1 (2) Multiply: (√5 - √7)√2
00:01:05 - Q1 (3) Multiply: (3√2 - √3)(4√3 - √2)
00:02:46 - Q2 (1) Rationalize: 1 / (√7 + √2)
00:04:26 - Q2 (2) Rationalize: 3 / (2√5 - 3√2)
00:05:52 - Q2 (3) Rationalize: 4 / (7 + 4√3)
00:07:22 - Q2 (4) Rationalize: (√5 - √3) / (√5 + √3)
💡 Key Formulas Used:
1. Conjugate pair of (√a + √b) is (√a - √b)
2. (a + b)(a - b) = a² - b²
3. (a - b)² = a² - 2ab + b²
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