rationalise the denominator and simplify√11-√7÷√11-√7
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⇒√11-√7 ÷ √11-√7 × √11+√7 ÷ √11+√7
⇒(√11)² - (√7)² ÷ (√11)² - (√7)²
⇒ 11 - 7 ÷ 11 - 7
⇒ 4 ÷ 4
⇒ 1.
Step-by-step explanation:
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