1. n2y
2. n2y2
3. -n2y
4. ny
-n2y
1. -2/x2
2. 2/x2
3. 1/x2
4. -1/x2
2/x2
1. 1/3
2. 3
3. 5/3
4. 3/5
3
1. 4y
2. -4y
3. 16y
4. -16y
-16y
1. 29
2. 26
3. -29
4. -26
-29
1. xy1-y
2. (y1-xy)2
3. (xy1-y)2
4. (y1-xy)3
(xy1-y)2
1. 1/32
2. 3/32
3. 9/32
4. 5/32
9/32
1. 9x-4y-1=0
2. 9x-4y+1=0
3. 9x+4y-17=0
4. 9x+4y-22=0
9x-4y-1=0
1. 1/e3
2. 1/e2
3. 1/e
4. 1
1/e2
1. 0
2. 1
3. -1
4. 1/2
-1