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Byju's Answer
Standard XII
Mathematics
Trigonometric Ratios of Multiples of an Angle
24. Find the ...
Question
24. Find the general value of @ if sin3@=cos2@
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Q.
Find the value of
[
sin
2
22
o
+
sin
2
68
o
cos
2
22
o
cos
2
68
o
+
sin
3
63
o
+
cos
63
o
sin
27
o
]
Q.
The value of
sin
1
∘
+
sin
3
∘
+
sin
5
∘
+
sin
7
∘
cos
1
∘
cos
2
∘
sin
4
∘
is
Q.
The value of the expression
2
(
sin
1
∘
+
sin
2
∘
+
sin
3
∘
+
.
.
.
+
sin
89
∘
)
2
(
cos
1
∘
+
cos
2
∘
+
.
.
.
+
cos
44
∘
)
+
1
is
Q.
sin
3
α
cos
2
α
<
0
if
α
lies in
Q.
Solve :
∫
s
i
n
3
x
c
o
s
2
x
d
x
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