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3 December, 12:54

What is sin 2t + cos t=?

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  1. 3 December, 16:09
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    I've left some alternatives below ...
  2. 3 December, 16:40
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    Sin (2t) = 2 sin (t) cos (t)

    sin (2t) + cos (t) =

    2 sin (t) cos (t) + cos (t) =

    cos (t) [ 1 + 2 sin (t) ]
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