someone help on qs 21 to 23. thanks so much.

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secondary 4 A Maths Singapore

someone help on qs 21 to 23. thanks so much.

Date Posted: 5 years ago

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Here are the solution for 22 and 23 only..Will post 21 soon when I'm really sure of my answer..Hope it helps.. :)

Date Posted: 5 years ago