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secondary 4 | A Maths
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3a and b
Date Posted: 6 years ago
Views: 361
Use the formula for sin(A+B). But b4 that to make sure ur answer is correct without mistake, please draw triangle to find out sin A, sin B, cos A, and cos B
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done
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Hope this helps! Do ask or comment if you need further explanation! :)
Date Posted:
6 years ago
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