A-Level Maths: E3-12 Trig Graphs: Quickly Sketching y = cos(x) in radians

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Just so you know this video as well as the sketching y = tan(x) in radians video on your website are both labelled as sketching y= sin(x) in radians. Love your vids btw they're saving maths in lockdown for me!!!

ProfessorPotatoes