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Question
secondary 3 | A Maths
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pls help with b, c and d!! thank you
Date Posted: 3 years ago
Views: 329
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done
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clear
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B and c
Date Posted:
3 years ago
for qn B, why did you have to multiply to that fraction with cosA-sinA/cosA+sinA ?
By doing so u make use of conjugates and able to form new identity
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