Consider the curve C: y=cos x. You may assume that for all values of x = [0,1/2] the curve C lies on or above the line y-1-² 2x Hence, from this assumption and by considering areas, provide an argument to show that π/4 < = Note that alternative arguments will not receive Your response should be written in sentences and logically justified 1/2 cos x dx s (4+ π)² 32 √2 X and on or beneath the line y=-- + √2 4+π