# What is the exact value of #tan -330#?

##### 1 Answer

May 10, 2015

Assuming you mean degrees,

To see this for yourself, consider an equilateral triangle with sides of length 1, then cut it in half to produce 2 right angled triangles.

These smaller triangles will have internal angles of

The shortest side is of length

The hypotenuse is of length 1, so the other side will have length