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EAMCET Engineering 2002 Solved Paper
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© examsnet.com
Question : 143
Total: 200
If
y
=
a
e
x
+
b
e
−
x
+
c
, where
a
,
b
,
c
are parameters, then
y
′
′
′
is equal to
0
y
y
′
y
′
′
Validate
Solution:
We have,
y
=
a
e
x
+
b
e
−
x
+
c
y
′
=
a
e
x
−
b
e
−
x
y
′
′
=
a
e
x
+
b
e
−
x
y
′
′
′
=
a
e
x
−
b
e
−
x
=
y
′
© examsnet.com
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