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Mathematics
Mathematics
Problem
Evaluate
E
=
sin
(
90
∘
−
45
∘
)
sec
30
∘
+
cos
(
90
∘
−
30
∘
)
csc
60
∘
E = \sin(90^\circ - 45^\circ)\sec 30^\circ + \cos(90^\circ - 30^\circ)\csc 60^\circ
E
=
sin
(
9
0
∘
−
4
5
∘
)
sec
3
0
∘
+
cos
(
9
0
∘
−
3
0
∘
)
csc
6
0
∘
. a)
6
+
3
4
\dfrac{\sqrt{6}+\sqrt{3}}{4}
4
6
+
3
b)
6
+
3
3
\dfrac{\sqrt{6}+3}{3}
3
6
+
3
c)
6
+
3
3
\dfrac{\sqrt{6}+\sqrt{3}}{3}
3
6
+
3
d)
6
−
3
3
\dfrac{\sqrt{6}-\sqrt{3}}{3}
3
6
−
3
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