Xs = 0.48. 



t (y_2-+y +s )+0.16'07 8268 3155 26S5 5306 (y_ 3 H-y +3 ) + 



573 (^_ 4 -f- y +4 ) + 0.0496 9S93 5763 5290 6496 (y_5+y +5 ). 



= 0.40, ;r 5 = 0.48; 



^ -f 0.1620 0046 6594 3564 4351 (^_ 2 -f- y +2 ) -j- 

 ÎS6 (j/_ 3 +y +3 ) + 0.1103 2436 5934 1461 1036 (y_ 4 -fy +4 ) + 

 13 (y_ 5 +y +5 ). 



œ 5 = 0.43, x, = 0.49. 



i 5841 (j/_ 2 +y + . 2 ) -f 0.1447 7126 2221 2260 4764 7856 (y_ 3 -fy +3 ) + 

 .06 0471 (//_,,. -f y +4 ) + 0.0S3S 0110 7372 4227 4774 0S84 (y_ 5 + j/ +5 ) + 

 [-59 4948 (y_ 6 +y +r ,). 



= 0.34, x- = 0.43, ^» 6 = 0.49. 



[ 8698 ^ -f 0.1335 9151 3523 5941 6219 2606 (^_ 2 +y +2 ) + 



156 1568 (.y_: 3 + v/ +3 ) + 0.0950 4021 3079 9708 1741 4542 (y_ 4 -j- y +4 ) -f 



)69 SS79 (y_o+y +i ) + 0.0302 555.2 3853 6116 8065 S056 (y_ G +j/ +6 ). 



