# If the roots of the equation 4x3-12x2+11 x + k = 0 are in arithmetic progression, then k is equal to :

1.  -3

2.  1

3.  2

4.  3

4

-3

Explanation :
No Explanation available for this question

# If f(x) is a polynomial of degree n with rational coefficients and 1+2i, 2-√3 and 5 are three roots of       f(x) = 0, then the least value of n is :

1.  5

2.  4

3.  3

4.  6

4

5

Explanation :
No Explanation available for this question

# Element

1.  A-2, B-4, C-1, D-3

2.  A-4, B-2, C-1, D-3

3.  A-2, B-4, C-3, D-1

4.  A-4, B-1, C-2, D-3

4

A-4, B-2, C-1, D-3

Explanation :
No Explanation available for this question

1.  1992

2.  1993

3.  1994

4.  0

4

0

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  2

4.  3

4

3

Explanation :
No Explanation available for this question

1.  1

2.  2

3.  3

4.  4

4

1

Explanation :
No Explanation available for this question

1.  (9+6i)/13

2.  (9-6i)/13

3.  9+6i

4.  9-6i

4

(9+6i)/13

Explanation :
No Explanation available for this question

1.  -1

2.  1

3.  1 / √2

4.  i / √2

4

-1

Explanation :
No Explanation available for this question

# If nεN, and the period of [cosnx/sin(x/n)] is 4π, then n is equal to

1.  4

2.  3

3.  2

4.  1

4

2

Explanation :
No Explanation available for this question

1.  4

2.  3

3.  2

4.  1

4