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(11 + √11)(11-√11) |
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Answer» 11 + √11)(11 - √11)SOLVE it Solution ★Applying IDENTITY to solve this question : a² - b² = (a + B)(a - b)→ (11 + √11)(11 - √11)→ (11)² - (√11)²→ 121 - 11→ 110Some IDENTITIES(a + b)² = a² + b² + 2ab(a - b)² = a² + b² - 2aba³ - b³ = (a -b)(a² + ab + b²)a³ + b³ = (a +b)(a² - ab + b²)(a +b)³ = a³ + b³ + 3ab(a+b)(a -b)³ = a³ - b³ - 3ab(a-b) |
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