## Ask Singapore Homework?

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These questions are definitely pitched at a level much higher than that of the O Levels, so these questions are unlikely to appear in the O Levels.

Date Posted:
2 months ago

Ok.

Is in my book

Is in my book

Hence, there should be an easier proof for this, but I am not experienced enough to reach that level of proof.

For Q2 last part, again there should be a better proof, but I am not experienced enough.

For Q3, we usually let a and b be positive integers. If you use the other pair of positive values, you will still get the same answer for the square root of (34 + 24 root 2).

Of course, for the square root of (34 + 24 root 2), we only take the positive outcome, not the negative outcome, so the negative pairs of values are rejected.