Homework Help: trigonometry

Posted by sam on Sunday, September 11, 2011 at 2:45pm.

1)find the exact value indicated trigonometric function of θ, if θ is the angle is standard position whose terminal side contains the given point.
(-2 ,√2); Find cos θ

2) find the length of the arc intercepted by a central angle of 35degree 28' in a circle of radius 15 ft. Round to two decimal places, if necessary.

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