At what point does the terminal side of the angle 7π/4 in standard position intersect the unit circle?
(-√2 / 2, −√2 / 2)
(-√2 / 2, √2 / 2)
(√2 / 2, −√2 / 2)
(√2 / 2, √2 / 2)
7pi / 4 is a 45° reference angle in the 4th quadrant
A 45° angle in the first quadrant has the coordinates (√2 / 2, √2 / 2)
But...in the 4th quadrant, the y coordinate is negative....so
(√2 / 2, - √2 / 2)
