A-Level Edexcel C3 June 2009 Q2(b) : ExamSolutions

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Комментарии
Автор

@jaytabbisalegend Yes. Just go to the homepage and search the index of tutorials or if doing an exam, search the module.

ExamSolutions_Maths
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Not at all. In this example cos is negative. So you go for the quadrants where cos is negative. The 2nd and 3rd quadrants.

ExamSolutions_Maths
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I thought the angle that you find using the inverse of cos is the acute one that you mark on the quadrants? Why is it not the case this time?

jasie
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@omghowrandom Take a look at my quadrant rule videos which explain this in detail

ExamSolutions_Maths
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Uchiha Itachi is studying for A levels


jadugar