Question

I attached the question in the image below

Answer 1

Answer:

45°

Step-by-step explanation:

$tan^{-1}(1)$ = 45°

Answer 2

Answer:

$\huge\boxed{\theta=45^o\ \vee\ \theta=225^o}$

Step-by-step explanation:

$\tan\theta=1$

$\bold{METHOD\ 1}\\\\\text{Use the table in the attachment}\\\\\tan45^o=1\to\theta=45^o\ \vee\ \theta=45^o+180^o=225^o\\\\\bold{METHOD\ 2}\\\\\tan\theta=1\to\tan^{-1}1=\theta\to\theta=45^o\ \vee\ \theta=225^o$