Introduction To Trigonometry
> Question
VSA
1 mark
Year: 2020
Easy
CBSE Class 10
trigonometry
identity
Question
The value of
(
1
+
tan
2
θ
)
(
1
−
sin
θ
)
(
1
+
sin
θ
)
= ________.
Solution
1
(
1
+
tan
2
θ
)
(
1
−
sin
2
θ
)
=
sec
2
θ
⋅
cos
2
θ
=
1
+1 mark
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