1. 1
2. 2
3. 4
4. 6
1
1. 1/2
2. 2/3
3. 3/2
4. 2
2/3
1. 2u
2. u
3. 3u
4. (1/3)u
3u
1. 1/2
2. 2/3
3. 3/2
4. 2
2/3
1. x2+y2-2xy+8x+8y-16=0
2. x2+y2-2xy+8x+8y=0
3. x2+y2+8x+8y-16=0
4. x2-y2+8x+8y-16=0
x<sup>2</sup>-y<sup>2</sup>+8x+8y-16=0
1. 2/3(tan-1√x)+c
2. 2/3(tan-1√x/3)+c
3. tan-1√x+c
4. (tan-1√x/3)+c
2/3(tan-1√x/3)+c
1. xex+c
2. x2xx+c
3. (x+1)ex + c
4. (x2+1)ex + c
(x2+1)ex + c
1.
2.
3.
4.
1. π/512
2. 3π/512
3. 5π/512
4. 7π/512
7π/512
1. any value of a and b
2. a > 0, b > 0 only
3. a > 0, b < 0 only
4. a < 0, b < 0 only
any value of a and b