Question: angle thetais a third-quadrant angle and tantheta=5/12; using this information find the value. cos theta = a.-12/13 b.12/13 c.-5/12

angle thetais a third-quadrant angle and tantheta=5/12; using this information find the value.

cos theta =

a.-12/13

b.12/13

c.-5/12

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