a(1)=3, a(10)=-1
a(10)=a(1)+9d
-1=3+9d
-4=9d
d=-4/9
a(2)=a(1)+d=3- 4/9=23/9=2 5/9
a(3)=a(1)+2d=3=2(-4/9)=21/9=2 1/3
a(4)=a(1)+3d=3+3(-4/9)=5/3= 1 2/3
a(5)=a(1)+4d=3+4(-4/9)=11/9=1 2/9
a(6)=a(1)+5d==3+5(-4/9)=7/9
a(7)=a(1)+6d=3+6(-4/9)=1/3
a(8)=a(1)+7d=3+7(-4/9)=-1/9
a(9)=a(1)+8d=3+8(-4/9)=-5/9
a(n): 3;2 5/9;2 1/3;1 2/3; 1 2/9; 7/9; 1/3; -1/9; -5/9;-1
-1 -0.6 -0.2 0.2 0.6 1 1.4 1.8 2.2 2.6 3
a(1)=3, a(10)=-1
a(10)=a(1)+9d
-1=3+9d
-4=9d
d=-4/9
a(2)=a(1)+d=3- 4/9=23/9=2 5/9
a(3)=a(1)+2d=3=2(-4/9)=21/9=2 1/3
a(4)=a(1)+3d=3+3(-4/9)=5/3= 1 2/3
a(5)=a(1)+4d=3+4(-4/9)=11/9=1 2/9
a(6)=a(1)+5d==3+5(-4/9)=7/9
a(7)=a(1)+6d=3+6(-4/9)=1/3
a(8)=a(1)+7d=3+7(-4/9)=-1/9
a(9)=a(1)+8d=3+8(-4/9)=-5/9
a(n): 3;2 5/9;2 1/3;1 2/3; 1 2/9; 7/9; 1/3; -1/9; -5/9;-1
-1 -0.6 -0.2 0.2 0.6 1 1.4 1.8 2.2 2.6 3