Eric Nicholas K's answer to Carolyn's Secondary 4 A Maths Singapore question.
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Good evening Carolyn! Here are my workings for this question.
I assume you have learnt these concepts.
1. Pythagoras’ Theorem
2. The three basic trigonometric ratios (sin, cos, tan) for acute angles
3. The sine/cosine rules
4. The techniques of surd rationalisation
5. The exact values for the trigonometric ratios of special angles
I assume you have learnt these concepts.
1. Pythagoras’ Theorem
2. The three basic trigonometric ratios (sin, cos, tan) for acute angles
3. The sine/cosine rules
4. The techniques of surd rationalisation
5. The exact values for the trigonometric ratios of special angles
Date Posted:
4 years ago
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