Question

A bar =i bar + j bar what is the angle between the vectors and x axis​

Answer 1

A bar =i bar + j bar what is the angle between the vectors and x axis = 45 degree

Explanation:

$|a| = \sqrt{1 + 1} \\ = \sqrt{2} \\ cos \: inverse( \frac{1}{ \sqrt{2} } ) \\ = 45$