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Byju's Answer
Standard XII
Mathematics
Relation between Inverses of Trigonometric Functions and Their Reciprocal Functions
Which of the ...
Question
Which of the following is the value of
sin
27
∘
−
cos
27
∘
?
A
√
3
−
√
5
2
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B
√
5
−
√
5
2
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C
√
5
−
1
2
√
2
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D
none of these
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Solution
The correct option is
C
none of these
sin
27
0
−
cos
27
0
=
sin
27
0
−
sin
63
0
=
2
cos
(
90
0
2
)
sin
(
−
36
0
2
)
=
−
√
2
sin
18
0
=
1
−
√
5
2
√
2
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0
Similar questions
Q.
The value of
5
+
2
6
is
(a)
3
-
2
(b)
3
+
2
(c)
5
+
6
(d) none of these