# trigonometry

posted by
**sam** on
.

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.