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Byju's Answer
Standard XII
Mathematics
Trigonometric Ratios of Common Angles
Solve: sin 6...
Question
Solve:
sin
60
o
cos
2
45
o
−
3
tan
30
o
+
5
cos
90
o
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Solution
Now,
sin
60
o
cos
2
45
o
−
3
tan
30
o
+
5
cos
90
o
=
√
3
2
1
2
−
3
×
1
√
3
+
5
×
0
[ Using the values of
sin
,
cos
and
tan
's]
=
√
3
−
√
3
+
0
=
0
.
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Similar questions
Q.
The value of
sin
60
o
cos
2
45
o
−
cot
30
o
+
5
cos
90
o
is :
Q.
Solve
sin
30
o
sin
45
o
+
sin
45
o
sec
60
o
−
sin
60
o
cot
45
o
−
cos
30
o
sin
90
o
Q.
Prove that
sin
60
o
+
sin
30
o
sin
60
o
−
sin
30
o
=
tan
60
o
+
tan
45
o
tan
60
o
−
tan
45
o
Q.
What is
s
i
n
60
o
=
Q.
Prove that
cos
2
45
o
−
sin
2
15
o
=
√
3
4
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Standard XII Mathematics
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