Question

What is 5 pi over 4 radians in degrees?


45°

135°

225°

315°

Answer 1

7pi/4=2pi-pi/4.... so you can evaluate all three at -pi/4 as f(2kpi+x)=f(x) where f is a trig function

Answer 2

so,
how is 7pi/4=2pi-pi/4
2pi - pi is pi, right?

Answer 3

\[\frac{ 7 \Pi }{ 4 }=2\Pi-\frac{ \Pi }{ 4 }\]

Answer 4

^that's what I meant.

Answer 5

actually.... nevermind.. i figured it out O.o
thanks for your help though :D

Answer 6

you're welcome.