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Byju's Answer
Standard X
Mathematics
Standard Values of Trigonometric Ratios
If sinθ =13...
Question
If
s
i
n
θ
=
1
3
then find the value
{
2
cot
2
θ
+
2
}
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Solution
2
c
o
t
2
θ
+
2
=
2
(
1
+
c
o
t
2
θ
)
=
2
c
o
s
e
c
2
θ
Now
s
i
n
θ
=
1
3
∴
c
o
s
e
c
θ
=
3
∴
2
c
o
s
e
c
2
θ
=
2
(
3
)
2
=
2
×
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