# Expressin the form of a+ib

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Expressin the form of a+ib

1.  24i/13

2.  27i/13

3.  28i/13

4.  30i/13

4

24i/13

Explanation :
No Explanation available for this question

# Expressin the form of a+ib

1.

2.

3.

4.  None

4

Explanation :
No Explanation available for this question

# The equation of the sphere on the join of 2i+2j-3k, 5i-j+2k as a diameter is

1.  x2+y2+z-7x-y+z+2=0x

2.  x2+y2+z-7x-y+z+2=0

3.  x2+y2+z2-7x+y+z-2=0

4.  x2+y2+z2+7x+y+z+2=0

4

x2+y2+z-7x-y+z+2=0x

Explanation :
No Explanation available for this question

# The centre of the sphere (r-3i-4j+5k).(r-2i+3j-4k)=0 is

1.  5i+j-k

2.  1/2(5i+j-k)

3.  i+7j-9k

4.  1/2(i+7j-9k)

4

1/2(5i+j-k)

Explanation :
No Explanation available for this question

# Expressin the form of a+ib

1.

2.

3.

4.  None

4

Explanation :
No Explanation available for this question

# If r.a=r.b=r.c=0 where a, b, c are non-coplanar, than

1.

2.

3.

4.  0

4

0

Explanation :
No Explanation available for this question

# Expressin the form of x+iy

1.

2.

3.

4.  None

4

Explanation :
No Explanation available for this question

# The centre of the sphere (r-3i+3j+5k).(r+i-j+3k)=0 is

1.  (4, -6, 8)

2.  (2, -3, 4)

3.  (2, 2, 2)

4.  (1, 1, 1)

4

(1, 1, 1)

Explanation :
No Explanation available for this question

1.

2.

3.

4.  None

4