［文字サイズの変更］
▼
▲
©2026 数学クラブ http://sugaku.club/
月 日（ ）
● 次の等式を[ ]内の変数について解きなさい．
[181-20]
(1)
1
[
b
]
a
=
b
2
(2)
1
2
[
z
]
x
=
−
y
z
2
(3)
2
[
v
]
u
=
v
w
5
(4)
3
3
[
r
]
p
=
−
q
r
5
(5)
3
2
[
w
]
u
=
−
v
w
4
(6)
2
[
q
]
p
=
q
3
(7)
4
[
q
]
p
=
q
r
5
(8)
1
2
[
v
]
u
=
v
w
3
(9)
3
[
b
]
a
=
−
b
4
(10)
2
3
[
v
]
u
=
v
w
3
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
1
[
b
]
a
=
b
2
1
b
2
=
a
b
=
2
a
(2)
1
2
[
z
]
x
=
−
y
z
2
1
2
−
y
z
2
=
x
z
2
x
=
−
2
y
(3)
2
[
v
]
u
=
v
w
5
2
v
w
5
=
u
v
5
u
=
2
w
(4)
3
3
[
r
]
p
=
−
q
r
5
3
3
−
q
r
5
=
p
r
5
p
=
−
3
3
q
(5)
3
2
[
w
]
u
=
−
v
w
4
3
2
−
v
w
4
=
u
w
4
u
=
−
2
3
v
(6)
2
[
q
]
p
=
q
3
2
q
3
=
p
q
3
=
p
2
(7)
4
[
q
]
p
=
q
r
5
4
q
r
5
=
p
q
5
p
=
4
r
(8)
1
2
[
v
]
u
=
v
w
3
1
2
v
w
3
=
u
v
3
u
=
2
w
(9)
3
[
b
]
a
=
−
b
4
3
−
b
4
=
a
b
4
=
−
a
3
(10)
2
3
[
v
]
u
=
v
w
3
2
3
v
w
3
=
u
v
3
u
=
3
2
w