1. √17
2. √17/2
3. √17/4
4. √29/2
√17/2
1. 30
2. 13
3. 12
4. 5
13
1. -1
2. 1
3. 2
4. 3
1
1. 9
2. 18
3. 12
4. 10
9
1. -25
2. 0
3. 10
4. 24
10
1. 11/2
2. -11/2
3. 0
4. 2/11
0
1. |b|/2(b2+c2 )
2. (b2+c2)/2
3. (b2+c2)/|2c|
4. (b2+c2)/|2b|
(b2+c2)/|2b|
1. (1, 3)
2. (-1 -2)
3. (1/5, 1)
4. (-9/5 , 4)
(-1 -2)
1. (3,2)
2. (3,-2)
3. (-3,-2)
4. (-3,2)
(3,-2)
1. x + y=5
2. 2x + 2y=5
3. 2(x – y)=5
4. x +y=1
2x + 2y=5