Eneko Narbona (ezin ditut erroak ezta berreketak irudikatu)

Aurreko atalak ikasi eta gero, pres egongo zara hurrengo galderari erantzuteko:Aurreko atalak ikasi eta gero, pres egongo zara hurrengo galderari erantzuteko:

A: Sin30=-x/r ⇨ x=-r.Sin30=-2.1/2=-1
Cos30=-y/r ⇨ y=-r.Cos30=-2.erro3/2=-3

A=(-1,-erro3)

A=-1-erro3i

A ⇨ r=(x)ber2+(y)ber2=(-1)ber2 +(-erro3)ber2=2
x=arctan-erro3/-1=arctanerro3=240gradu
A=2

240gradu






B: Sin60=-y/r ⇨ y=-r.Sin60=-2.erro3/2=-3
Cos60=x/r ⇨ x=r.Cos60=2.1/2=1

B=(1,-erro3)

B=1-erro3i

B ⇨ r=(x)ber2+(y)ber2=(1)ber2 +(-3)ber2=2
x=arctan-erro3/1=arctan-erro3=300gradu
B=2

300gradu





C=(2,0)

C=2+0i

C ⇨ r=(x)ber2+(y)ber2=(2)ber2 +(0)ber2=2
x=arctan0/2=arctan0=Ogradu
C=2O0






D: Sin30=x/r ⇨ x=r.Sin30=2.1/2=1
Cos30=y/r ⇨ y=r.Cos30=2.erro3/2=erro3

D=(1,erro3)

D=1+erro3i

D ⇨ r=(x)ber2+(y)ber2=(1)ber2 +(3)ber2=2
x=arctanerro3/1=arctanerro3=60gradu
D=2

60gradu




E: Sin30=-x/r ⇨ x=-r.Sin30=-2.1/2=-1
Cos30=y/r ⇨ y=r.Cos30=2.erro3/2=erro3

E=(-1,erro3)

E=-1+erro3i

E ⇨ r=(x)ber2+(y)ber2=(-1)ber2 +(3)ber2=2
x=arctan3-1=arctan-3=120gradu
E=2

120gradu







F=(-2,0)

F=-2+0i

F ⇨ r=(x)ber2+(y)ber2=(-2)ber2+(0)ber2=2
x=arctanO/-2=arctan0=180gradu

F=2

180gradu