［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)
2
[
r
]
p
=
−
q
r
3
(2)
1
[
r
]
p
=
q
r
2
(3)
1
[
q
]
p
=
−
q
2
(4)
6
2
[
v
]
u
=
−
v
w
5
(5)
1
3
[
q
]
p
=
q
r
4
(6)
1
[
q
]
p
=
q
2
(7)
2
[
q
]
p
=
q
3
(8)
2
2
[
z
]
x
=
−
y
z
5
(9)
3
[
r
]
p
=
q
r
4
(10)
1
[
c
]
a
=
−
b
c
2
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
[
r
]
p
=
−
q
r
3
2
−
q
r
3
=
p
r
3
p
=
−
2
q
(2)
1
[
r
]
p
=
q
r
2
1
q
r
2
=
p
r
2
p
=
q
(3)
1
[
q
]
p
=
−
q
2
1
−
q
2
=
p
q
=
−2
p
(4)
6
2
[
v
]
u
=
−
v
w
5
6
2
−
v
w
5
=
u
v
5
u
=
−
2
6
w
(5)
1
3
[
q
]
p
=
q
r
4
1
3
q
r
4
=
p
q
4
p
=
3
r
(6)
1
[
q
]
p
=
q
2
1
q
2
=
p
q
=
2
p
(7)
2
[
q
]
p
=
q
3
2
q
3
=
p
q
3
=
p
2
(8)
2
2
[
z
]
x
=
−
y
z
5
2
2
−
y
z
5
=
x
z
5
x
=
−
2
2
y
(9)
3
[
r
]
p
=
q
r
4
3
q
r
4
=
p
r
4
p
=
3
q
(10)
1
[
c
]
a
=
−
b
c
2
1
−
b
c
2
=
a
c
2
a
=
−
b