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TS EAMCET 18-July-2022 Shift 2 Solved Paper
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© examsnet.com
Question : 18
Total: 160
If the
4
th
term in the expansion of
(
x
2
−
2
y
3
)
6
is
−
20
, then
x
y
=
2
3
8
27
Validate
Solution:
👈: Video Solution
T
4
=
T
3
+
1
=
−
20
⇒
6
C
3
(
x
2
)
3
(
−
2
y
3
)
3
=
−
20
⇒
20
×
x
3
8
×
(
−
8
y
3
27
)
=
−
20
⇒
x
3
y
3
=
27
∴
x
y
=
3
© examsnet.com
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