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Mathematics
Problem
Evaluate
(
1
+
tan
2
30
∘
)
cos
2
30
∘
(1+\tan^{2}{30^\circ})\cos^{2}{30^\circ}
(
1
+
tan
2
3
0
∘
)
cos
2
3
0
∘
. a)
1
3
\dfrac{1}{3}
3
1
b)
3
2
\dfrac{\sqrt{3}}{2}
2
3
c)
1
1
1
d)
4
3
\dfrac{4}{3}
3
4
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