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Byju's Answer
Standard XII
Mathematics
Euler's Representation
The value of ...
Question
The value of
(
x
y
−
y
x
)
(
y
z
−
z
y
)
(
z
x
−
x
z
)
(
1
x
2
−
1
y
2
)
(
1
y
2
−
1
z
2
)
(
1
z
2
−
1
x
2
)
is
A
−
x
2
y
2
z
2
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B
x
2
y
2
z
2
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C
1
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D
xyz
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Solution
The correct option is
A
−
x
2
y
2
z
2
(
x
y
−
y
x
)
÷
(
1
x
2
−
1
y
2
)
=
−
x
y
etc.
∴
Given expression
=
(
−
x
y
)
(
−
y
z
)
(
−
x
z
)
=
−
x
2
y
2
z
2
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0
Similar questions
Q.
If
x
y
+
y
z
+
z
x
=
1
, prove that
x
1
−
x
2
+
y
1
−
y
2
+
z
1
−
z
2
=
4
x
y
z
(
1
−
x
2
)
(
1
−
y
2
)
(
1
−
z
2
)
.
Q.
If
x
y
+
y
z
+
z
x
=
1
, the prove that
x
1
+
x
2
+
y
1
+
y
2
+
z
1
+
z
2
=
2
[
(
1
=
x
2
)
(
1
+
y
2
)
(
1
+
z
2
)
]
1
/
2
.
Q.
I
f
x
y
+
y
z
+
z
x
=
1
,
prove that
x
1
−
x
2
+
y
1
−
y
2
+
z
1
−
z
2
=
4
x
y
z
(
1
−
x
2
)
(
1
−
y
2
)
(
1
−
z
2
)
.
Q.
Show that
x
2
+
y
2
+
z
2
−
x
y
−
y
z
−
z
x
=
1
2
[
(
x
−
y
)
2
+
(
y
−
z
)
2
+
(
z
−
x
)
2
]
.
Q.
Statement
1
:
If
x
y
+
y
z
+
z
x
=
1
where
x
,
y
,
z
∈
R
+
, then
x
1
+
x
2
+
y
1
+
y
2
+
z
1
+
z
2
=
2
√
(
1
+
x
2
)
(
1
+
y
2
)
(
1
+
z
2
)
Statement
2
:
In a triangle
A
B
C
,
sin
2
A
+
sin
2
B
+
sin
2
C
=
4
sin
A
sin
B
sin
C
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