complex numbers (1 Viewer)

[jnney]

Express z in the form x+iy in mod-arg form, hence find the exact values of cos 7pi/12 and sin 7pi/12 = root 8 cis 7pi/12 = root 8 (cos 7pi/12 + i sin 7pi/12) what next ? :O thank you ^_^

 

[MrTroll]

Express z in the form x+iy in mod-arg form, hence find the exact values of cos 7pi/12 and sin 7pi/12 = root 8 cis 7pi/12 = root 8 (cos 7pi/12 + i sin 7pi/12) what next ? :O thank you ^_^

ur question doesnt make any sense. set it out properly

 

[jnney]

Oh crap, i dont know what happened, it doesnt let me edit it. Ignore everything after 'Express z in the form x+iy in mod-arg form, hence find the exact values of cos 7pi/12 and sin 7pi/12'