Using the Unit Circle., find the exact value of this trig function: backslash (backslash sin(270^wedge backslash circ) ( ). -1 undefined

To find the exact value of using the unit circle, we need to understand the position of the angle on the unit circle.The unit circle is a circle with a radius of 1, and it is used to define the trigonometric functions sine, cosine, and tangent. The angle is located in the third quadrant of the unit circle.In the unit circle, the sine of an angle is defined as the y-coordinate of the point where the terminal side of the angle intersects the unit circle.For the angle , the terminal side intersects the unit circle at the point . Therefore, the sine of is equal to the y-coordinate of this point, which is .So, the exact value of is .