Question

Let tan(x)=2/5
What is the value of tan(2π−x)
please!

Answer 1

-0.4 or
`(-2)/( 5)`

Explanation:

`tan^-^(1) ({(2)/(5) })=21.80\\`

tan ( 2π-21.80)

but 2π = 360

Therefore our question becomes:

tan ( 360-21.80)=tan(338.2)= -0.4