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Mathematics for IGCSE & O level - Surds (Section 3 - No. 5)

Rationalize the denominator: (√2 + 1)/ (√2 - 1).
3+2√2
3-2√2
1
2

Forklaring

(√2 + 1) / (√2 - 1) * (√2 + 1) / (√2 + 1) = (2 + 2√2 + 1) / (2-1) = 3 + 2√2

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