Question

What is the period of `f(t)=sin( 8 t)`?

Answer 1

`pi/4`

Explanation:

f(x)= sin ax.
Period of such a function is `2*pi/a`
Here, a =8
period= `2*pi/8` =`pi/4`

You can verify this by substituting various values for x, to find that the values repeat after every `pi/4` interval.