– 10 –
63
x
=
n – m
nX
3
– mX
1
+ Y
1
– Y
3
y = m (x – X
1
) + Y
1
)
(
m
=
X
2
– X
1
Y
2
– Y
1
n =
X
4
– X
3
Y
4
– Y
3
64
x =
n – m
nX
3
– mX
1
+ Y
1
– Y
3
y = m (x – X
1
) + Y
1
)
(
m
=
X
2
– X
1
Y
2
– Y
1
n = tan
α
65
P = RI
2
(R > 0)
66
P = (R > 0)
V
2
R
67
68
X
= 2 f L – ( = L – = X
L
– X
C
) ( f, L, C > 0)
π
1
2 f C
π
ω
1
C
ω
69
Z = R
2
+ (2 f L )
2
(= R
2
+
2
L
2
) (R, f, L > 0)
π
ω
70
Z =
( )
1
R
2
+
( )
2
2 f C –
π
1
2 f L
π
1
(
R, f, C, L > 0)
71
Z =
( )
2
2 f L –
π
1
2 f C
π
R
2
+
( )
=
( )
L –
1
C
R
2
+
ω
ω
(R, f, L, C > 0)
72
F = mH
(m, H > 0)
(X4, Y4)
(X1, Y1)
(X2, Y2)
(X3, Y3)
(
x
,
y
)
(X3,
Y3)
(X2, Y2)
(X1, Y1)
(x, y)
X
α
U
k
= m
2
1
2
υ
(m, > 0)
υ
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