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secondary 4 | E Maths
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Date Posted: 6 years ago
Views: 304
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Here u go :)
Date Posted:
6 years ago
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Here's the ans
Date Posted:
6 years ago
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The trick is to understand the trigo identities and be familiar with all the basic sin, cos, tan graphs and their respective range of positive and negative values. Once you master this technique, you can eliminate C and D immediately.
Date Posted:
6 years ago
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