50. let y1 x) and y2x) be two solutions of (1 - x) -2.x+(sec x)y = 0 with wronskian w(x). if dx (0)= dy2 dx = 0 and then dx x=0 equals dx jx=0 (a) 1/4 (c) 3/4 (

50. Let y1 X) and y2X) be two solutions of (1 - x) -2.x+(sec x)y = 0 with Wronskian W(x). If dx (0)= dy2 dx = 0 and then dx x=0 equals dx Jx=0 (a) 1/4 (c) 3/4 (6) 1 (d) 4/3