The period of the sin(4x+π2) function is π2 so values will repeat every π2
radians in both directions.
x=π8+πn2,3π8+πn2
, for any integer n
Consolidate the answers.
x=π8+πn4
, for any integer n
How do I know when to consolidate answers? What should I look for? (I know if they are pi apart they repeat)