Find all solutions in the interval [0, 2π).

7 tan3x - 21 tan x = 0

Hence, all the solutions in the interval [0,2π) are:

We are asked to find the solution of the trignometric identity which is given by:

On dividing both side by 7 we get:

i.e.

Either

i.e.

or

If

and if

Hence, all solutions are:

i think it is true since you can test the answer and can use observations to complete it.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )