Answer:
.
Step-by-step explanation:
We want to find the value of .
Note that;
This implies that;
Also 270 degrees is a quadrantal angle.
On the unit circle, is the x-coordinate of the point
Hence, .
Answer:
B.
Step-by-step explanation:
0
Answer:
-9s2 + 4s -2
Step-by-step explanation:
(–6s2 + 12s – 8) – (3s2 + 8s – 6)=
(-6s2-3s2) +12s-8s -8+6=
-9s2 + 4s -2
Answer:
Step-by-step explanation:
Answer:1/6
Step-by-step explanation:
Mandela served as president of South Africa for five years.
Challenges can be overcome through hard work and persistence.
Mandela encouraged peace in his country while he was president.
Answer:
In Nelson Mandela's family he was the first to receive a formal education. At that time, very few black kids attained high school education in South Africa.