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secondary 3 | A Maths
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nancy ting
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secondary 3 chevron_right A Maths chevron_right Singapore

please help!!

Date Posted: 4 years ago
Views: 199

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
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We introduce the conjugate of each surd (here, surd just means square root, does not include cube root and higher roots) in the denominator because the product of a surd and its conjugate is a non-surd.
nancy ting
Nancy Ting
4 years ago
thank you!!