please teach me how to do this question :) thanks !

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secondary 3 | A Maths
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secondary 3 A Maths Singapore

please teach me how to do this question :) thanks !

Date Posted: 5 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

I hope u understand if u don't i will explain more detail

Date Posted: 5 years ago