Using the cosine double angle formula,

(Note I took the positive case since
terminates in the first quadrant)
Using the Pythagorean identity,

(Note I took the positive case since
terminates in the first quadrant)
Answer: 15/5=3 3-1= 2
The answer would be 2. :P
Answer:
44
Step-by-step explanation:
You plug in both numbers for the corresponding letters
Answer:
t = 0.55 s and t = 1.14 s
Step-by-step explanation: