Answer:
Step-by-step explanation:
I am planning to take an upper division mathematics class starting this Fall 2021 at a four-year college/university right now. In my spare time, I like to come here at https://brainly.com and help out others who struggle with mathematics.
Answer:
![\cos (115\degree)=-0.423](https://tex.z-dn.net/?f=%5Ccos%20%28115%5Cdegree%29%3D-0.423)
Step-by-step explanation:
The parametric equations of a circle is
and ![y=r\sin \theta](https://tex.z-dn.net/?f=y%3Dr%5Csin%20%5Ctheta)
The radius of the unit circle is 1 unit.
This implies that any point on the unit circle is represented by:
and ![y=\sin \theta](https://tex.z-dn.net/?f=y%3D%5Csin%20%5Ctheta)
where
is the angle in standard position,
From the question, the given angle in standard position is
.
This angle intersects the unit circle at ![x=-0.423](https://tex.z-dn.net/?f=x%3D-0.423)
But ![x=\cos \theta](https://tex.z-dn.net/?f=x%3D%5Ccos%20%5Ctheta)
We substitute
and ![x=-0.423](https://tex.z-dn.net/?f=x%3D-0.423)
This implies that: ![\cos (115\degree)=-0.423](https://tex.z-dn.net/?f=%5Ccos%20%28115%5Cdegree%29%3D-0.423)
The answer Is the option C
Answer:
The answer is in the image.
Step-by-step explanation:
4.30 = answer:(:(:(:*:(:(:(:(