Question: Question 3 terix Use cosx = and sin x = 2 to express sinxsin 5x in a form involving the 2i difference of two

Question 3 " terix Use cosx = and sin x =

Question 3 " terix Use cosx = and sin x = 2 to express sinxsin 5x in a form involving the 2i difference of two cosines. [4 marks]

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