χͺ(1)Μ2.(4)π
f
(
x
)
=
x
f
(
x
)
=
x
1
2
f
′
(
x
)
=
1
2
x
1
2
−
1
=
1
2
x
−
1
2
=
1
2
⋅
1
x
1
2
=
1
2
x
Λ
qg1
,
qg2
Λ
χͺ(1)ΜTOPΦίι