Posted by **Daisy** on Sunday, April 6, 2008 at 10:19pm.

how do u state the period of a function?

for ex.

f(x)=sin((1/2)x)

- Pre-Calculus -
**Reiny**, Sunday, April 6, 2008 at 10:40pm
for y = sin kx, the period is 2pi/k radians or 360/k º

so your period is 360/1/2) = 720º

BTW, the same rule applies to the cosine function, but for the tangent function the period is pi/k radians or 180/kº

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