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AP EAPCET 07-Jul-2022 Shift 2 Paper
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Section:
Mathematics
© examsiri.com
Question :
64 of 160
Marks:
+1
,
-0
If
‌
d
d
x
(
‌
x
2
+
1
(
x
2
+
5
)
(
x
2
+
9
)
)
=
‌
2
x
(
x
2
+
1
)
(
x
2
+
5
)
(
x
2
+
9
)
[
‌
1
f
(
x
)
−
‌
1
g
(
x
)
−
‌
1
h
(
x
)
]
then
2
h
(
x
)
−
f
(
x
)
−
g
(
x
)
=
12
16
18
20
Validate
Solution:
y
=
x
2
+
1
(
x
2
+
5
)
(
x
2
+
9
)
⇒
log
‌
y
=
log
(
x
2
+
1
)
−
log
(
x
2
+
5
)
−
log
(
x
2
+
9
)
⇒
1
y
â‹…
d
y
d
x
=
2
x
[
1
x
2
+
1
−
1
x
2
+
5
−
1
x
2
+
9
]
⇒
d
y
d
x
=
2
x
(
x
2
+
1
)
(
x
2
+
5
(
x
2
+
9
)
.
[
1
x
2
+
1
−
1
x
2
+
5
−
1
x
2
+
9
]
⇒
f
(
x
)
=
x
2
+
1
,
g
(
x
)
=
x
2
+
5
,
h
(
x
)
=
x
2
+
9
∴
2
h
(
x
)
−
g
(
x
)
−
f
(
x
)
=
12
© examsiri.com
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