# if the sum of two roots of the equation Ax3+Bx2+Cx+D=0 is equal to zero,then B=

1.  -1

2.  0

3.  1

4.  2

4

2

Explanation :
No Explanation available for this question

1.  4B

2.  8B

3.  64B

4.  128B

4

128B

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  -500

4.  500

4

0

Explanation :
No Explanation available for this question

# if a,b and c respectively denote the ranks the ranks of A, B and C then the correct order of these number i

1.  a < b < c

2.  c < b < c

3.  b < a < c

4.  a < c < b

4

b < a < c

Explanation :
No Explanation available for this question

# Given that aα2+2bα+c≠0 and that the system of equations (aα+b)x+ay+bz=0 (bα+c)x+by+cz=0, (aα+b)y+(b&al

1.  Arithmetic progression

2.  Geometric progression

3.  harmonic progression

4.  Arithmetic - geometric progression

4

Geometric progression

Explanation :
No Explanation available for this question

# If a, b, c, d∈R are such that a2+b2 = 4 and c2+d2 =2 and if (a+ib)2 =(c+id)2(x+iy)then x2+y2

1.  4

2.  3

3.  2

4.  1

4

4

Explanation :
No Explanation available for this question

# If z is complex number such that |z-(4/z)|=2,then the greatest value of |z| is

1.  1+√2

2.  √2

3.  √3+1

4.  1+√5

4

1+√5

Explanation :
No Explanation available for this question

# If α is a non real root of the equation x6-1=0 then (α2+α3+α4+α5)/(α+1) is

1.  α

2.  1

3.  0

4.  -1

4

α

Explanation :
No Explanation available for this question

# The minimum value of 27tan2θ+3cot2θ is

1.  15

2.  18

3.  24

4.  30

4

18

Explanation :
No Explanation available for this question

1.  1

2.  1/2

3.  1/4

4.  1/8

4