1. x2 + y2 + z2 + 2x – 4y – 6z – 14=0
2. x2 + y2 + z2 – 2x + 4y + 6z – 14=0
3. x2 + y2 + z2 + 2x – 4y + 6z=0
4. x2 + y2 + z2 + 2x – 4y – 6z =0
x2 + y2 + z2 + 2x – 4y – 6z =0
1. 14C7
2. 12C6
3. 12C5
4. 11C5
12C6
1. x2 + y2 + z2 – 2x – 4y – 6z – 22=0
2. x2 + y2 + z2 + 2x + 4y + 6z +22=0
3. x2 + y2 + z2 + 2x + 4y+ 6z – 86=0
4. x2 + y2 + z2 – 2x – 4y – 6z =0
x2 + y2 + z2 – 2x – 4y – 6z =0
1. 31
2. 32
3. 63
4. 64
31
1. x2 + y2 + z2 – 6x – 8y – 10z + 25=0
2. x2 + y2 + z2 – 6x – 8y – 10z + 34=0
3. x2 + y2 + z2 – 6x – 8y – 10z + 41=0
4. x2 + y2 + z2 – 2x – 4y – 6z + 50=0
x2 + y2 + z2 – 6x – 8y – 10z + 25=0
1. x2 + y2 + z2 + 4x + 6y+ 8z + 11=0
2. x2 + y2 + z2 – 4x – 4y – 8z – 11 =0
3. x2 + y2 + z2 – 4x – 2y – 6z + 11=0
4. x2 + y2 + z2 – 4x – 2y +6z – 11=0
x2 + y2 + z2 – 4x – 2y – 6z + 11=0
1. 0
2. 1
3. 2
4. Infinite
0
1. a + 1
2. a
3. a - 1
4. 0
a
1. 5n
2. (-1)n
3. 9n
4. 1
1
1. 4n
2. 3n
3. 2n
4. 2
3n