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Byju's Answer
Standard X
Mathematics
Range of Trigonometric Ratios from 0 to 90 Degrees
Evaluate the ...
Question
Evaluate the following :
s
i
n
2
30
∘
c
o
s
2
45
∘
+
4
t
a
n
2
30
∘
+
1
2
s
i
n
2
90
∘
−
2
c
o
s
2
90
∘
+
1
24
c
o
s
2
0
∘
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Solution
s
i
n
2
30
∘
c
o
s
2
45
∘
+
4
t
a
n
2
30
∘
+
1
2
s
i
n
2
90
∘
−
2
c
o
s
2
90
∘
+
1
24
c
o
s
2
0
∘
=
(
1
2
)
2
(
1
√
2
)
2
+
4
(
1
√
3
)
2
+
(
1
2
)
(
1
)
2
−
2
(
0
)
2
+
(
1
24
)
(
1
)
2
=
1
8
+
4
3
+
1
2
+
1
24
=
3
24
+
32
24
+
12
24
+
1
24
=
48
24
=
2
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5
Similar questions
Q.
Evaluate each of the following
s
i
n
2
30
o
+
s
i
n
2
45
o
+
4
t
a
n
2
30
o
+
1
2
s
i
n
2
90
o
−
2
c
o
s
2
90
o
+
1
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c
o
s
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Q.
Evaluate :
sin
2
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cos
2
45
+
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30
+
1
2
sin
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−
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cos
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+
1
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Q.
Evaluate:
(
i
)
s
i
n
2
30
∘
.
c
o
s
2
45
∘
+
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t
a
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∘
+
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s
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∘
+
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c
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(
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∘
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s
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2
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∘
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s
e
c
2
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∘
+
5
c
o
s
2
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∘
c
o
s
e
c
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∘
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∘
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[4 MARKS]
Q.
Evaluate each of the following
sin
2
30° cos
2
45° + 4 tan
2
30° +
1
2
sin
2
90
°
-
2
cos
2
90
°
+
1
24
cos
2
0
°