9
15. The diagram below shows the unit c

Question

9
15. The diagram below shows the unit circle.
A. Determine the
coordinates of Point C in
terms of cosine and sine
of e.
D
C
B. Describe the
relationship between
Points C and D. What
transformation(s) could
be applied to Point C to
get Point D?
no
C. Determine the
coordinates of Point Din
terms of cosine and sine
of e.

Kunduz · Accepted Answer

solution:
D
6
Assume & is the Radius of Cordle.
s
C = (rcoso, & simo)
(raso, rsing)
from diagram
0.76-0 +0=180
0 + 0 = 1800
2- = 180-0
r
put & in form of o in point D
Ds (rw (180-0), rsin (180-0)
D = (ruso, &simo)
r
Now, Reflection of point in y-axis
(-rcoso, rsing)
that is Equavilent to Point D.

9 15. The diagram below shows the unit circle. A. Determine the coordinates of Point C in terms of cosine and sine of e. D C B.