Venus Goh's answer to Lakshmi Sujeesh's Secondary 4 A Maths Singapore question.
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These are the trigo formula that you’re expected to know for Amaths! So you just have to sub in and use the formula, there isnt an explanation for it, unless you google and read the explanation. Hope it helps!
Date Posted:
5 years ago
Never come across these formulas before.Apparently,the formulas were not introduced to amath students studying in the current syllabus.Using it may not mean anything yet unless the syllabus changes again..Didn't learn to apply them..Otherwise,I may have mislook it..Whatever it is thanks for sharing something new..Appreciate it. :)
Thank you so much
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