0 v-(+ 2) ( - ve)a 0 =- (y + z) (1 - y) o + (y + z) (l - ye) (a) 0 + ( + (1- ye) (a) uonenbe ey1 jo sjoo ey aq uen eje "uonnjos jennu-uou b sey p(1)a(1- x9) = (

0 V-(+ 2) ( - vE)a 0 =- (Y + Z) (1 - Y) O + (Y + Z) (L - YE) (a) 0 + ( + (1- YE) (a) uonenbe ey1 jo sjoo ey Aq uen eJe "uonnjos jenNu-uOu B Sey p(1)A(1- x9) = (XA uonenbe je6eju eyi yoIum Joy jo sanjeA BL