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Asked by Davis

Suppose that 0degrees<theta<180degrees. what is the sign of each of the following?

a) cos theta/2

b)sin(-theta)
14 years ago

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Answered by bobpursley
You really ought to think this out.
14 years ago
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Question

Suppose that 0degrees<theta<180degrees. what is the sign of each of the following?

a) cos theta/2

b)sin(-theta)

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