Answer:
Not defined over the real numbers
Step-by-step explanation:
Let
[tex]x = arc \cos( \frac{ - 3}{ \sqrt{2} }) [/tex]
This implies that:
[tex] \cos(x) = \frac{ - 3}{ \sqrt{2} } [/tex]
This implies that:
[tex] \cos(x) = - 2.12[/tex]
The range of the cosine function is -1≤y≤1
Therefore
[tex] arc \cos( \frac{ - 3}{ \sqrt{2} }) [/tex]
is not defined for over the real numbers.
