Maths people pls help
You would rely on the following general properties:
sin(x - y) = sin x cos y - cos x sin y
cos(x - y) = cos x cos y + sin x sin y
With that:
sin(x - pi / 2) = - cos x
cos(x - pi / 2) = sin x
So the l...
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Signed up | 2015-01-26 |
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