Asked by Anonymous
Which is cos2 theta if sin theta = -2/sqrt13 and 180 < theta < 270?
1. -(13/5)
2. -(5/13)
3. 5/13
4. 13/5
3?
1. -(13/5)
2. -(5/13)
3. 5/13
4. 13/5
3?
Answers
Answered by
Steve
correct.
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