Pls help me check my answer I feel like the last question answer should not be s

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secondary 4 | A Maths
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secondary 4 A Maths Singapore

Pls help me check my answer I feel like the last question answer should not be so easy

Date Posted: 7 months ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 7 months ago