a^y-z.b^z-x.c^x-y=1 [x+z=2y,b^2=ac]
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8
Answer:
ANSWER
Let a
x
=b
y
=c
z
=k .....( Given )
∵a
x
=k
⇒a=k
x
1
∵b
y
=k
⇒b=k
y
1
.....∵c
z
=k
⇒c=k
z
1
Given, b
2
=ac
Substituting values of a,b,c in above equation
(k
y
1
)
2
=k
x
1
×k
z
1
⇒k
y
2
=k
x
1
+
z
1
⇒
y
2
=
x
1
+
z
1
⇒
y
2
=
xz
x+z
⇒y=
x+z
2xz
Option (A) is correct.
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