Question 936140
sin 90  = 1
sin 180 = 0
cos 90 =0
cos 180 =-1
b/w 90-180 degrees ( II quadrant ) sin value decreases and cos value increases
sin 270 =-1
sin 360 =0
cos 270 =0
cos 360=1
B/w 270-360( IV quadrant) the same pattern appears
 Hence in II & IV quadrants, the above said pattern appears