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secondary 4 | E Maths
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i need help for part b and c
Date Posted: 5 years ago
Views: 324
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Part (c) coming soon
Date Posted:
5 years ago
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Risky to use sine rule for the last part as angle BAD is not immediately known whether to be acute or obtuse (we cannot always trust diagrams).
It happens that the angle, upon computation by cosine rule, is obtuse.
It happens that the angle, upon computation by cosine rule, is obtuse.
Date Posted:
5 years ago
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