1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Summation by Sigma Method
The expansion...
Question
The expansion ,
x
l
o
g
y
−
l
o
g
z
.
y
l
o
g
z
−
l
o
g
x
.
z
l
o
g
x
−
l
o
g
y
when simplified reduces to...............
Open in App
Solution
We have,
x
log
y
−
log
z
⋅
y
log
z
−
log
x
⋅
z
log
x
−
log
y
=
x
log
y
x
log
z
⋅
y
log
z
y
log
x
⋅
z
log
x
z
log
y
=
1
Hence, this is the answer.
Suggest Corrections
1
Similar questions
Q.
Prove that
x
log
y
−
log
z
.
x
log
z
−
log
x
.
x
log
x
−
log
y
=
1
.
Q.
Prove that
x
l
o
g
y
−
l
o
g
z
×
y
l
o
g
z
−
l
o
g
x
×
z
l
o
g
x
−
l
o
g
y
=
1
Q.
If x, y, z are positive then minimum value of
x
log
y
−
log
z
+
y
log
z
−
log
x
+
z
log
x
−
log
y
is
Q.
If
x
,
y
,
z
are positive then the minimum value of
x
l
o
g
y
−
l
o
g
z
+
y
l
o
g
z
−
l
o
g
x
+
z
l
o
g
x
−
l
o
g
y
is
Q.
What is the solution of DE
(
y
x
+
sin
y
)
dx
+
(
log
x
+
x
cos
y
)
dy
=
0