... [14 - 22 ] - 12sBảng IIγ\n 30 40 505 [13 - 15] - 10s [15 - 25 ] - 28 s [10 - 24 ] - 70s10 [15 - 22 ] - 50s [ 12 - 22 ] - 60s [13 - 21 ] - 21 0s15 [17 - 22 ] - 90s [13 - 21 ] - 22 5s [13 - 20 ] - 420 sDữ ... x1− 1) 2( x 2 − x1− 1), x ∈ (I), 2( x 2 − x1− 1) + 4x1(−x 2 + x 2 1− 1) 2( x 2 − x1− 1) − 2( −x 2 + x 2 1− 1), x ∈ (II),4x1(−x 2 + x 2 1− 1) 2( −x 2 + x 2 1− 1), ... x 2 − x1− 1}] 2 + [max{0,−x 2 + x 2 1− 1}] 2 =0, x ∈ D,(x 2 − x1− 1) 2 , x ∈ (I),(x 2 − x1− 1) 2 + (−x 2 + x 2 1− 1) 2 , x ∈ (II),(−x 2 + x 2 1− 1) 2 ,...