The average of the numbers \( n \sin n^{\circ} \) for \( n=2,4,6, \ldots 180 \) (a) 1 (b) \( \co...

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The average of the numbers \( n \sin n^{\circ} \) for \( n=2,4,6, \ldots 180 \)
(a) 1
(b) \( \cot 1^{\circ} \)
(c) \( \tan 1^{\circ} \)
(d) \( \frac{1}{2} \)
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