Question

I don't understand why
2pi/k = period

for a trigonometric function.

Answer 1

\[cos (x) , and\space sin(x) \]
have period of 2pi

Answer 2

2pi is a normal period for a sin or cos function; it the way it behaves naturally; by adjusting the way it natrually behaves, we mess with its periodicity

Answer 3

lets say you run a mile with a period of 2 hours\[\]
when we modify your speed, we adjust your 2hour period right?

Answer 4

nice

Answer 5

thnx :)