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Mathematics
Mathematics
Problem
If the lines
m
x
+
2
y
+
1
=
0
mx+2y+1=0
m
x
+
2
y
+
1
=
0
and
2
x
+
3
y
+
5
=
0
2x+3y+5=0
2
x
+
3
y
+
5
=
0
are perpendicular then the value of
m
m
m
is- (1) 3 (2) -3 (3)
−
1
/
3
-1/3
−
1/3
(4)
1
/
3
1/3
1/3
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