c. C d. D 0/1 Question 6 The region bounded by the x-axis and the part of the graph y= cos x between x = -and x = is separated into two regions by the line Π π x=k. If the area of the region for ≤x≤k is three times the area - of the region for k ≤ x ≤ then k = A) arcsin (4) rcsin ( 96 73 C) D)