how to do part d? pls provide clear explanation

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secondary 2 | Maths
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secondary 2 Maths Singapore

how to do part d? pls provide clear explanation

Date Posted: 2 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 2 years ago

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2 years ago

hi, thank you so much for the answer! however, the answer key states that the answer is 12. is the answer key wrong?

PhysChemTutor

2 years ago

I am not sure. But i can't see why should it be 12.