Trig
posted by
Rachal
.
How can I find the exact value of Sin 480 degrees? Thanks

Trig 
Anonymous
480°=360°+120°
sin(480°)=sin(120°)
sin(90°+x)=sin(90°x)
sin(90°+30°)=sin(90°30°)
sin(120°)=sin(60°)
sin(480°)=sin(120°)=sin(60°)=sqroot(3)/2

Trig 
Rachal
Thank you I see where I got stuck

Trig 
Parikshit
Sin(480) = sin (5x90 + 30) = cos 30 = sqrooy(3)/2

math 
shobhit
3/2