Answer:
a) 1.2 seconds
b) 50 bpm
Step-by-step explanation:
a)
The period is the value of t that makes the angle be 2π:
5πt/3 = 2π
t = 3(2π)/(5π) = 6/5
The period of the function is 6/5 = 1.2 seconds.
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b)
The number of beats per minute is ...
(1 beat)/(1.2 s) × (60 s)/(1 min) = 60/1.2 beats/min = 50 beats/min
