Geraldine Tan's answer to Jolene's Junior College 2 H2 Maths question.

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Geraldine Tan
Geraldine Tan's answer
48 answers (Tutor Details)
1st
i think my part ii is wrong haha cant figure that out sorry :( maybe you can try binom expansion?
Jolene
Jolene
6 years ago
Haha it's okay :)
For the first part from the 3rd to 4th working why did your denominator changes from 2 to 4?
Geraldine Tan
Geraldine Tan
6 years ago
at first the denominator 2 is outside of the square root, but since in the question the denominator is inside the sqrt so i brought the 2 into the sqrt. to do that i need to square 2, so denominator becomes 4
Jolene
Jolene
6 years ago
Oh okay thanks