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KEAM 2023 Math Solved Paper
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© examsnet.com
Question : 55
Total: 120
If
x
∈
(
0
,
π
)
satisfies the equation
6
1
+
s
i
n
x
+
s
i
n
2
x
+
.
.
.
=
36
, then the value of
x
is
0
π
3
π
6
π
2
π
4
Validate
Solution:
6
1
+
s
i
n
x
+
s
i
n
2
x
+
.
.
.
.
.
.
=
36
=
6
2
i.e.,
1
1
−
s
i
n
x
=
2
1
−
2
−
2
s
i
n
x
2
s
i
n
x
=
1
s
i
n
x
=
1
2
x
=
π
6
© examsnet.com
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