Question

1) Find the value of​vii) tan 240°

Answer 1

tan 240° = tan (180°+60°)
⇒tan(60°)
⇒√3
∴tan 240°=√3

Answer 2

tan 240° = tan(180 + 60)
              = tan 60°             {tan(180° + theta) = tan theta }
tan 240° = √3.