Evaluate the trigonometric function by using the quadrant and the reference angle to determine the sign and absolute value. Round your answer to the nearest thousandth. sin 440°

Answer 1

The reference angle is 440-360=80degrees which places it in quadrant 1 where sin is positive= .9848 rounding to nearest thousandth = .985

Answer 2

Can subtract 360 from angle and get to same position in unit circle.

sin (440) = sin (440-360) = sin (80) = 0.985