Answer:
See explanation
Step-by-step explanation:
The given trigonometric equation is [tex]cos(90-x)=-\frac{\sqrt{3} }{3}[/tex].
We take the inverse cosine of both sides to get:
[tex]90-x=cos^{-1}(-\frac{\sqrt{3} }{3})[/tex]
[tex]90-x=125[/tex]
[tex]x=125-90[/tex]
[tex]x=-35\degree=325\degree[/tex] to the nearest degree
None of the options satisfies the given equation.
But if the question is actually;
[tex]cos(90-x)=-\frac{\sqrt{3} }{2}[/tex]
Then;
[tex]90-x=\cos^{-1}(-\frac{\sqrt{3} }{2})[/tex].
[tex]90-x=210[/tex].
[tex]90-x=210[/tex].
[tex]x=-120\degree[/tex].
Or
[tex]x=360-120=240\degree[/tex].
In this case the answer will be B
Answer:
the correct answer is 150
Step-by-step explanation:
i j took the test
