can someone explain what is happening in this qn as im confused, thx :)

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secondary 3 | A Maths
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secondary 3 A Maths Singapore

can someone explain what is happening in this qn as im confused, thx :)

Date Posted: 4 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

I hope this helps, and also you can clarify with your teacher if I had said anything wrongly (: Hopefully my explanation is right and clear ^^

Date Posted: 4 years ago

LockB

4 years ago

thx :)