SOLUTION: what is the (cotatangent theta= -1, 90 degrees <theta< 180 degrees; find cosine theta)

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Question 320552: what is the (cotatangent theta= -1, 90 degrees
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
theta = 135º
cos%28t%29+=+-sqrt%282%29%2F2