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Byju's Answer
Standard XII
Mathematics
Basic Trigonometric Identities
What is the v...
Question
What is the value of
(
sec
θ
+
1
)
2
+
(
1
−
sec
θ
)
2
1
+
sec
2
θ
?
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Solution
(
a
+
b
)
2
+
(
a
−
b
)
2
a
2
+
b
2
=
2
In this case
a
=
sec
θ
b=1 Hence the value of the given expression is 2
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