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Standard XII
Maths
Question
If
|
a
|
≠
|
b
|
,
then the equation
a
z
+
b
¯
z
+
c
=
0
represents
A straight line
An ellipse
A circle
A point
A
An ellipse
B
A point
C
A circle
D
A straight line
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Solution
Verified by Toppr
a
z
+
b
¯
¯
¯
z
+
c
=
a
(
x
+
i
y
)
+
b
(
x
−
i
y
)
+
c
=
0
a
x
+
b
x
+
c
+
i
y
(
a
−
b
)
=
0
Since we have given
|
a
|
≠
|
b
|
Thus given equation is represents point.
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|
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|
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|
b
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,
then the equation
a
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b
¯
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c
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