A-Level Edexcel C3 January 2006 Q6a : ExamSolutions

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@mrvink01 Thanks for pointing that out, I will do it soon.

ExamSolutions_Maths
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YouTube blocks links here so you have to go to my home page and select Pure maths next to the picture of students. In the index that follows look for trigonometry identities 2 then A cos x ± B sin x and A sin x ± B cos x

ExamSolutions_Maths
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Is that supposed to be 18.44 to 2dp or have I been rounding up incorrectly?

harryew
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Sir how come the 4 isn't negative as in the fx..

TlhomphoDitedu