Cos 210° = cos ( 180° + 30° ) - cos 30° = - √3/2
Answer:
The graph is wider and is reflected across the x axis.
Step-by-step explanation:
See attached image.
Answer:
P1= -2/3
P2= -10/3
Step-by-step explanation:
take the sq rt of both sides and use both + and - roots
3P+6=4
3P+6=-4
subtract 6 from both sides for each one
3P=-2
P=-2/3
3P=-10
P= -10/3
Answer:
C
Step-by-step explanation: