snell's answer to Winnica's Secondary 4 A Maths Singapore question.
done
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clear
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hope this helps.
* rmb the identity :
sin 2A = 2sin A cos A
* rmb the identity :
sin 2A = 2sin A cos A
Date Posted:
5 years ago
Very clear explantion!!!!! Thank you so much!!!!!凸^-^凸
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