Question

Find the angle vector (9,7) makes with the x axis​

Answer 1

≈ 37.9°

Explanation:

Using the tangent ratio

tanΘ =
`(y)/(x)` where (x, y ) = (9, 7 )

tanΘ =
`(7)/(9)` , thus

Θ =
`tan^(-1)` (
`(7)/(9)` ) ≈ 37.9° ( to the nearest tenth )