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Byju's Answer
Standard X
Mathematics
Trigonometric Identities
cosecΔ =2, ...
Question
c
o
s
e
c
Δ
=
2
,
1
t
a
n
Δ
+
s
i
n
Δ
1
+
c
o
s
Δ
=
?
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Solution
given that,
cos
e
c
Δ
=
2
consider,
1
tan
Δ
+
sin
Δ
1
+
cos
Δ
=
cos
Δ
sin
Δ
+
sin
Δ
1
+
cos
Δ
=
cos
Δ
+
cos
2
Δ
+
sin
2
Δ
sin
Δ
(
1
+
cos
Δ
)
=
cos
Δ
+
1
sin
Δ
(
1
+
cos
Δ
)
sin
2
Δ
+
cos
2
Δ
=
1
cos
e
c
Δ
=
2
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