Answer:
2cosAcos2A, 4sinAcos^2A
Step-by-step explanation:
cos3A+cosA
2cos((3A+A)/2)cos((3A-A)/2)
2cos(4A/2)cos(2A/2)
2cosAcos2A
sin3A+sinA
2sin((3A+A)/2)cos((3A-A)/2)
2sin(4A/2)cos(2A/2)
2sin2AcosA
4sinAcos^2A
Answer:
-14.8p+25.9
Step-by-step explanation:
got it right edge 2020.
Answer:
Both
Step-by-step explanation:
They will both give you the same answer.
-13-5 = -18
-13 + -5 = -18
Answer:
B
Step-by-step explanation: