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:
Ari's is less than Davids
Ari=18.75
David=24.00
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Answer: The Answer is C
Step-by-step explanation: I just took the quiz on ed and this is the correct answer.