1. The problem statement, all variables and given/known data Please see the attached. Q1.Why 0° is not a solution of the equation cosθ = 2sinθ - 1? What's wrong with my steps? Q2:http://www.wolframalpha.com/input/?i=cosx+=+2sinx+-+1 From the graph,the x-coordinate of the intersection point does NOT equal to the answer that I calculated in the attached (0° +360°n or 180° + 360°n or 53.1°+360°n or 126.9° + 360°n), why? 2. Relevant equations 3. The attempt at a solution see the attached.