Circular functions question please help

[acebug]

Hi Guys

i was doing the insight 2006 methods 1 exam and got stuck on question 6 which was:

solve the equation sin(2X) - squareroot(Cos(2X)=0 between 0,2pi giving exact values in terms of pi. My teacher did the working out but wasnt really clear on it. Would you please be able to answer it step by step

thank you soo much for spending the time on the question

[naved_s9994]

Did you mean Q3?