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secondary 3 | A Maths
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Pls help. Thanhk u very muchy
Date Posted: 3 years ago
Views: 162
This question involves the repetitive use of the double angle formula for sin 2x.
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done
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clear
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A rough idea, which uses the following identities:
sin 2A = 2 sin A cos A (double angle formula for sine)
and
sin (180 - A) = sin A (supplementary angle rule for sine)
sin 2A = 2 sin A cos A (double angle formula for sine)
and
sin (180 - A) = sin A (supplementary angle rule for sine)
Date Posted:
3 years ago
Thank you very much
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