Jia Earn Lim's answer to Rosie's Secondary 3 A Maths Singapore question.

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Jia Earn Lim
Jia Earn Lim's answer
96 answers (Tutor Details)
1st
For rationalising denominators, we can use the “difference of squares” formula due to the square property, from step 2 to step 3, that’s what I did. Afterwards it’s just simplifying the equation. Hope this helps :)
Rosie
Rosie
1 year ago
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