Hi, ive just started a new topic at college using trig to do radians and circles and such.. But im struggling with this question which was set as homewor, so it wasnt really explained.. Thank you.

The question.

Solve the following equation for 0<and equal to 0with line through >and equal to 2pie. (hope tht makes sence) and do this with tan0=1 iv drawn the tan graph but dont know where to go from there ! thank you :)