Question

Find the direction angel of this vector <-5, 9>

Answer 1

θ = -60.94°

Explanation:

The given vector is:

v = -5i+9j

We need to find the angle of this vector.

The angle of this vector form is given by :

`\tan\theta=(y)/(x)\\\\\tan\theta=(9)/(-5)\\\\\tan\theta=-1.8\\\\\theta=\tan^(-1)(-1.8)\\\\=-60.94^(\circ)`

So, the angle of this vector is -60.94°.