Answer:
sin^2 A
Step-by-step explanation:
first expand the trigonometry
1(1-cosA)+cosA(1-cosA)
=1-cosA+cosA-cos^2 A
= 1-cos^2 A
from trigonometric identity sin^2 A + cos^2 A= 1
sin^2 A= 1- cos^2 A
=sin^2 A
Answer:
14.167
Step-by-step explanation:
assuming you meant 5+13

is the equation of a circle centered at

with radius

.
Here

,

, and

. So the answer is (C)
Answer:
Step-by-step explanation:
Answer: where's the question
Step-by-step explanation: