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Quantitative Aptitude
Circles
If the determ...
Question
If the determinant
x
+
a
p
+
u
l
+
f
y
+
b
q
+
v
m
+
g
z
+
c
r
+
w
n
+
h
splits into exactly k determinants of order 3, each element of which contains only one term, then k = __________.
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Solution
Let ∆ =
x
+
a
p
+
u
l
+
f
y
+
b
q
+
v
m
+
g
z
+
c
r
+
w
n
+
h
∆
=
x
+
a
p
+
u
l
+
f
y
+
b
q
+
v
m
+
g
z
+
c
r
+
w
n
+
h
=
x
+
a
p
+
u
l
y
+
b
q
+
v
m
z
+
c
r
+
w
n
+
x
+
a
p
+
u
f
y
+
b
q
+
v
g
z
+
c
r
+
w
h
=
x
+
a
p
l
y
+
b
q
m
z
+
c
r
n
+
x
+
a
u
l
y
+
b
v
m
z
+
c
w
n
+
x
+
a
p
+
u
f
y
+
b
q
+
v
g
z
+
c
r
+
w
h
=
x
p
l
y
q
m
z
r
n
+
a
p
l
b
q
m
c
r
n
+
x
+
a
u
l
y
+
b
v
m
z
+
c
w
n
+
x
+
a
p
+
u
f
y
+
b
q
+
v
g
z
+
c
r
+
w
h
=
x
p
l
y
q
m
z
r
n
+
a
p
l
b
q
m
c
r
n
+
x
u
l
y
v
m
z
w
n
+
a
u
l
b
v
m
c
w
n
+
x
+
a
p
+
u
f
y
+
b
q
+
v
g
z
+
c
r
+
w
h
=
x
p
l
y
q
m
z
r
n
+
a
p
l
b
q
m
c
r
n
+
x
u
l
y
v
m
z
w
n
+
a
u
l
b
v
m
c
w
n
+
x
+
a
p
f
y
+
b
q
g
z
+
c
r
h
+
x
+
a
u
f
y
+
b
v
g
z
+
c
w
h
=
x
p
l
y
q
m
z
r
n
+
a
p
l
b
q
m
c
r
n
+
x
u
l
y
v
m
z
w
n
+
a
u
l
b
v
m
c
w
n
+
x
p
f
y
q
g
z
r
h
+
a
p
f
b
q
g
c
r
h
+
x
+
a
u
f
y
+
b
v
g
z
+
c
w
h
=
x
p
l
y
q
m
z
r
n
+
a
p
l
b
q
m
c
r
n
+
x
u
l
y
v
m
z
w
n
+
a
u
l
b
v
m
c
w
n
+
x
p
f
y
q
g
z
r
h
+
a
p
f
b
q
g
c
r
h
+
x
u
f
y
v
g
z
w
h
+
a
u
f
b
v
g
c
w
h
Hence, if the determinant
x
+
a
p
+
u
l
+
f
y
+
b
q
+
v
m
+
g
z
+
c
r
+
w
n
+
h
splits into exactly k determinants of order 3, each element of which contains only one term, then k =
8
.
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