Answer:
b.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that a curve in polar coordinates is given by:
r=9+3cosθ
a) At point P, we have

Substitute to get

b) Cartesian coordinate is

c) At the origin r =0
when r =0
we have

Since cos cannot take values as -3 it doe snot pass through origin.
Answer:
C
Step-by-step explanation:
I might be wrong.
I guess that in total all the angles equal to 180, that being said...
m∠BAC = 79