# Trig Function Problem?

Suppose theta is in the interval (90 degrees, 180 degrees). Find the sign of each of the following.

1) cos (theta/2)

2) sec(theta+180 degrees)

3) sin(negative theta)

Can you please show each step?

1) cos (theta/2)

2) sec(theta+180 degrees)

3) sin(negative theta)

Can you please show each step?

Update:
Thank you all. Your answers are very much appreciated!!

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