Mark the correct alternative in each of the following: \( \lim _{\theta \rightarrow \pi / 2} \fr...
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Mark the correct alternative in each of the following: \( \lim _{\theta \rightarrow \pi / 2} \frac{1-\sin \theta}{(\pi / 2-\theta) \cos \theta} \) is equal to
(A) 1
(B) \( -1 \)
(C) \( 1 / 2 \)
(D) \( -1 / 2 \)
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