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Mathematics
Mathematics
Problem
For
θ
=
30
∘
\theta=30^\circ
θ
=
3
0
∘
, evaluate
1
−
cos
2
θ
sin
θ
cos
θ
\dfrac{1-\cos^2\theta}{\sin\theta\,\cos\theta}
sin
θ
cos
θ
1
−
cos
2
θ
. a)
3
\sqrt3
3
b)
1
3
\dfrac1{\sqrt3}
3
1
c)
2
3
\dfrac{2}{\sqrt3}
3
2
d) 2
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