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secondary 3 | A Maths
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Pls help me with 2a ASAP.... Thanks alot
Date Posted: 2 years ago
Views: 258
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done
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clear
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Pretty straightforward, just expand then you can easily see sin²x + cos²x, which equals to 1. 2sinxcosx equals to sin2x. Good to have the formulas at the side when doing this kind of question.
Date Posted:
2 years ago
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