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Byju's Answer
Standard X
Mathematics
Trigonometric Identities
Evaluate tan...
Question
Evaluate
tan
2
θ
+
cot
2
θ
+
2
=
sec
2
θ
+
c
o
s
e
c
2
θ
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Solution
According to question,
tan
2
θ
+
cot
2
θ
+
2
=
sec
2
θ
+
c
o
s
e
c
2
θ
⇒
s
e
c
2
θ
+
c
o
s
e
c
2
θ
−
t
a
n
2
θ
−
c
o
t
2
θ
=
2
LHS,
s
e
c
2
θ
−
t
a
n
2
θ
+
c
o
s
e
c
2
θ
−
c
o
t
2
θ
⇒
1
+
1
⇒
2
=
R
H
S
Hence proved
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Similar questions
Q.
Prove that:
(i)
s
e
c
2
θ
+
c
o
s
e
c
2
θ
=
s
e
c
2
θ
c
o
s
e
c
2
θ
(ii)
t
a
n
2
θ
−
s
i
n
2
θ
=
t
a
n
2
θ
s
i
n
2
θ
(iii)
t
a
n
2
θ
+
c
o
t
2
θ
+
2
=
s
e
c
2
θ
c
o
s
e
c
2
θ
Q.
Solve :
cot
2
θ
+
sec
2
θ
tan
2
θ
+
cosec
2
θ
=
(
sin
θ
cos
θ
)
(
tan
θ
+
cot
θ
)
Q.
State true or false.
tan
2
θ
sec
2
θ
+
cot
2
θ
c
o
s
e
c
2
θ
=
1
Q.
If
tan
θ
=
1
√
3
then evaluate
cos
e
c
2
θ
−
sec
2
θ
cos
e
c
2
θ
+
sec
2
θ
Q.
The minimum value of
sin
2
θ
+
cos
2
θ
+
sec
2
θ
+
c
o
s
e
c
2
θ
+
tan
2
θ
+
cot
2
θ
.
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