Raine's answer to Cheryl's Secondary 3 A Maths Singapore question.
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For (2i), remember (a+b)(a-b) = a^2 - b^2
For (2ii), use pythagoras theorem; a^2 +b^2 =c^2
Hope this helps!
For (2ii), use pythagoras theorem; a^2 +b^2 =c^2
Hope this helps!
Date Posted:
3 years ago
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