What is the period of f(t)=cos ( ( 5 t ) / 3 ) f(t)=cos(5t3)?

1 Answer
Dec 17, 2015

period=216^@=216

Explanation:

The period of a sinusoidal function can be calculated with the formula:

period=360^@/|k|=360|k|

In this case, since k=5/3k=53, we can substitute this value into the following equation to find the period:

period=360^@/|k|=360|k|

period=360^@/|5/3|=36053

period=216^@=216

:., the period is 216^@.