Answer:
2π
Step-by-step explanation:
Period is the time it takes for the wave to reach one full cycle, which is the distance between the adjacent crests. The first crest is at 0 and the second crest is at 2π. Therefore, it takes 2π seconds to complete a full cycle. Hope this helps!
Easy, 2:59 would be the start time.
Answer:66
Step-by-step explanation:
an=21+5n
ninth term is a9
a9=21+5x9
a9=21+45
a9=66
There is no full question.
