Mathematics for IGCSE & O level - Surds (Section 1 - No. 45) | ExamPlay

Mathematics for IGCSE & O level - Surds (Section 1 - No. 45)

Which expression represents the rationalized form of 4/√5?

4√5 / 5

√20

4 / 5

4√5

Explanation

(4/√5) * (√5/√5) = 4√5/5

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