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Mathematics
Problem
Consider the three lines:
L
1
:
3
x
+
4
y
−
12
=
0
L_1 : 3x + 4y - 12 = 0
L
1
:
3
x
+
4
y
−
12
=
0
L
2
:
4
x
−
3
y
+
5
=
0
L_2 : 4x - 3y + 5 = 0
L
2
:
4
x
−
3
y
+
5
=
0
L
3
:
6
x
+
8
y
+
9
=
0
L_3 : 6x + 8y + 9 = 0
L
3
:
6
x
+
8
y
+
9
=
0
Identify (i) the pair(s) that are parallel, and (ii) the pair(s) that are perpendicular.
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