Find All Solutions in the Interval [0, 2π]
- $7 \tan ^ { 3 } x - 21 \tan x = 0$

Multiple Choice

Find all solutions in the interval [0, 2π]
- $7 \tan ^ { 3 } x - 21 \tan x = 0$

A) $\frac { \pi } { 3 } , \frac { 2 \pi } { 3 } , \frac { 4 \pi } { 3 } , \frac { 5 \pi } { 3 }$
B) $0 , \frac { \pi } { 3 } , \frac { 2 \pi } { 3 } , \pi , \frac { 4 \pi } { 3 } , \frac { 5 \pi } { 3 }$
C) $0 , \frac { \pi } { 5 } , \pi , \frac { 6 \pi } { 5 }$
D) $0 , \frac { \pi } { 3 } , \pi , \frac { 4 \pi } { 3 }$