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Byju's Answer
Standard XII
Mathematics
Substitution Method to Remove Indeterminate Form
Express √3c...
Question
Express
(
√
3
cos
25
o
+
sin
25
o
)
2
Open in App
Solution
√
3
cos
25
∘
+
sin
25
2
=
√
3
2
cos
25
+
1
2
sin
25
=
sin
6
0.
cos
25
+
cos
60.
sin
25
sin
(
60
+
25
)
=
sin
(
85
∘
)
or
sin
(
90
−
5
)
=
cos
5
∘
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Similar questions
Q.
cos
25
o
+
sin
25
o
cos
25
o
−
sin
25
o
=
Q.
Without using tables, find:
sin
10
o
+
sin
50
o
−
sin
80
o
+
sin
140
o
√
2
.
sin
25
o
Q.
sin
47
o
−
sin
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o
+
sin
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−
sin
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o
=
Q.
If
sin
47
o
+
sin
61
o
−
sin
11
o
−
sin
25
o
=
Q.
If
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o
−
sin
25
o
=
k
then
cos
50
o
is equal to-
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