Question

medal award please help!

Answer 1

hint for the first part

\[\Large \frac{13\pi}{12} = \frac{\pi+12\pi}{12}\]
\[\Large \frac{13\pi}{12} = \frac{\pi}{12} + \frac{12\pi}{12}\]
\[\Large \frac{13\pi}{12} = \frac{\pi}{12} + \pi\]

Answer 2

I'm not sure what it is that they want.. they are asking for the coordinates i'm a little lost :/

Answer 3

for a unit circle ...

x = cos(t)

y = sin(t)

Answer 4

but working them into their radical values might be a bit daunting :/

Answer 5

add pi to pi/12 to get 13pi/12

this is the same as doing a 180 degree rotation