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Byju's Answer
Standard IX
Mathematics
Trigonometric Ratios of Standard Angles
If the value ...
Question
If the value of
t
a
n
α
=
5
2
, find the value of
c
o
t
θ
if
α
+
θ
=
90
∘
.
A
5
√
21
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B
5
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C
5
2
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D
√
21
2
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Solution
The correct option is
C
5
2
From the equation
α
+
θ
=
90
∘
,
we have
θ
=
90
∘
−
α
c
o
t
θ
=
c
o
t
(
90
∘
−
α
)
=
t
a
n
α
∴
c
o
t
θ
=
5
2
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Similar questions
Q.
If the value of
t
a
n
α
=
5
2
and
α
+
θ
=
90
∘
then the value of
c
o
t
θ
=