need help with part (iv) and (v)

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secondary 3 | A Maths
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secondary 3 A Maths

need help with part (iv) and (v)

Date Posted: 7 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Answers as shown in picture uploaded, with explanations. Let me know if there needs to be clearer explanation

Date Posted: 7 years ago