1. The problem statement, all variables and given/known data Express tan(2x) in terms of sin(x) alone. assuming: pi < x < 3pi/2 2. Relevant equations Trig identities 3. The attempt at a solution sin2x/cos2x switched for double angle equations; (2sinx*cosx)/((cosx)^2 - (sinx)^2) then wherever i go with it, it leads nowhere.