Low Yi Yin's answer to Benjay's Secondary 3 A Maths Singapore question.
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Hope this helps! ;))
This is really the last resort if all fails but considering it's 5 marks its all worth it!
Concept: trigo formula, use ASTC to rej (for obtuse angles, sine is always positive and cosine is always negative).
This is really the last resort if all fails but considering it's 5 marks its all worth it!
Concept: trigo formula, use ASTC to rej (for obtuse angles, sine is always positive and cosine is always negative).
Date Posted:
1 year ago
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