A-Level Maths: E7-46 [Trig Equations: Solve cos(x + 60) = sin(x) between 0 and 360 degrees]

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THANKS SO MUCH, WAS FINALLY ABLE TO SOLVE THE COMPLEX PROBLEM

codecutner
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Thanks Jack for all the videos. I was wondering, is it not possible to use the formula for cosine (i.e. cos (A+B) = cosAcosB - sinAsinB) then make this equal to sinx (i.e. cosx cos60 - sinx sin60 = sinx) ?

jubriladebowale
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couldnt we do 360 minus 30 then divide that by 2 to get 165, would that not be a solution?

yunus
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When I see you draw trig graphs free hand better then I can ever on a squared piece of paper guiding me...

xaikx