If the roots of 2x3+kx2-x+1=0 are in H.P them k=

1.  50/9

2.  -52/9

3.  52/9

4.  -50/9

4

-52/9

Explanation :
No Explanation available for this question

If 1/2,1/3,1/4 are the roots of ax3+bx2+cx+d=0 then the roots of a(x+1)3+b(x+1)2+c(x+1)+d=0 are

1.  1/2,2/3,3/4

2.  -1/2,-2/3,-3/4

3.  3/2,4/3,5/4

4.  -1/2,1/3,1/4

4

-1/2,-2/3,-3/4

Explanation :
No Explanation available for this question

The equation whose roots are cubes of the roots of x3+3x2+2=0 is

1.  x3+33x2+8=0

2.  x3-33x2+8

3.  x3+33x2+12x+8=0

4.  x3-33x2+12x+8=0

4

x3+33x2+12x+8=0

Explanation :
No Explanation available for this question

The roots of the equation x3-9x2+14x+24=0 are

1.  -1,4,6

2.  -1,-4,-6

3.  -1,4,-6

4.  -1,-4,6

4

-1,4,6

Explanation :
No Explanation available for this question

If the equation 2x3-9x2+12x+k=0 has two equal roots then k=

1.  -6

2.  4

3.  5

4.  -5

4

-5

Explanation :
No Explanation available for this question

If α,β are the roots of ax2+bx+c=0 observe the following lists

1.  1 2 3 4

2.  2 3 4 5

3.  1 2 5 4

4.  3 1 4 2

4

3 1 4 2

Explanation :
No Explanation available for this question

The roots of the equation a(b-c)x2+b(c-a)x+c(a-b)=0 are

1.  a,c(a-b)/a(b-c)

2.  c(a-b)/a(b-c),b(c-a)/a(b-c)

3.  1, b(c-a)/a(b-c)

4.  1, c(a-b)/a(b-c)

4

1, c(a-b)/a(b-c)

Explanation :
No Explanation available for this question

Assertion(A):x2+x+1 is greater than zero for all real x. Reason(R):when b2-4ac

1.  A is false but R is true

2.  A is true but R is false

3.  Both A and R are true and R is not the correct explanation of A

4.  Both A and R are true and R is the correct explanation of A

4

Both A and R are true and R is the correct explanation of A

Explanation :
No Explanation available for this question

If one roots of the equation 5x2+13x+k=0 is the reciprocal of the other then

1.  k=6

2.  k=1/6

3.  k=5

4.  k=0

4

k=5

Explanation :
No Explanation available for this question

1.  π/6

2.  π/3

3.  π/4

4.  π/2

4