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19. [-/5 Points] DETAILS Show that the point is on the unit circle (-) We need to show that the point satisfies the equation of the unit circle, that is, a[ 5) Hence, the point Select on the unit onde Need Help? 20. 1-/1 Points) DETAILS SALGTRIG4CR 6.1.011. Find the missing coordinate of A, ving the fact that Pes on the unit circle in the given quadrant Coordinates Quadrant Need Help? SALGTRIG4CR 6.1.007. um A 21. 12.1/2 Points] -4) DETAILS 11 PREVIOUS ANSWERS SALGTRIG4CR 5.4.043 D MY P MY NOTES MY NOTES