The roots of the equation x3-5x2-2x+24=0 are

1.  -2,-3,4

2.  -2,3,4

3.  -2,3,-4

4.  2,-3,-4

View Answer  
4
Correct Answer :

-2,3,4


Explanation :
No Explanation available for this question

The equation of the circle which passes through (1, 2) and (2, 1) and whose radius ‘1’ unit is

1.  x2+y2-x –y+1=0

2.  x2+y2 – 4x – 2y+4=0

3.  x2+y2– 2x – 4y+4=0

4.  x2+y2– 4x – 4y=0

View Answer  
4
Correct Answer :

x2+y2– 4x – 4y=0


Explanation :
No Explanation available for this question

If x4+2x3-4x2-4x+4=0 then 2s1-s2+s3-s4=

1.  3

2.  2

3.  1

4.  0

View Answer  
4
Correct Answer :

0


Explanation :
No Explanation available for this question

If 1,-1,2 are the roots of x3+Ax2+Bx+C=0 then the ascending order of A,B,C is

1.  A,B,C

2.  B,A,C

3.  C,B,A

4.  C,A,B

View Answer  
4
Correct Answer :

A,B,C


Explanation :
No Explanation available for this question

The equation of the circle circumscribing the triangle formed with coordinate axes ad the line with slope -2 and passing through (2, 2) is

1.  x2+y2 – 6x – 12y=0

2.  x2+y2 – 3x – 6y=0

3.  x2+y2 + 4x + 4y=0

4.  x2+y2 – 4x – 4y+7=0

View Answer  
4
Correct Answer :

x2+y2 – 3x – 6y=0


Explanation :
No Explanation available for this question

The value of (λ > 0) so that the line 3x – 4y =λ may touch the circle x2 + y2 -4x -8y -5=0 is

1.  45

2.  35

3.  25

4.  15

View Answer  
4
Correct Answer :

15


Explanation :
No Explanation available for this question

The equation whose roots are 1,1,-2 is

1.  x3+3x-2=0

2.  x3+x-2=0

3.  x3+2x-3=0

4.  x3-3x+2=0

View Answer  
4
Correct Answer :

x3-3x+2=0


Explanation :
No Explanation available for this question

The equation whose roots are 0,0,2,2,-2,-2 is

1.  x6+8x4-16x2=0

2.  x6-4x4-16x2=0

3.  x6-8x4+16x2=0

4.  x6+4x4+16x2=0

View Answer  
4
Correct Answer :

x6-8x4+16x2=0


Explanation :
No Explanation available for this question

If one root of x3-5x2+2x+8=0 is double the other then the roots are

1.  -1,3,6

2.  -1,2,4

3.  1,2,4

4.  1,3,6

View Answer  
4
Correct Answer :

-1,2,4


Explanation :
No Explanation available for this question

If two roots are 9x3-30x2+31x+8=0 are in the ratio 2:5 then the roots are

1.  1/-2/3,-5/3

2.  -1,2/3,5/3

3.  1,2/3,5/3

4.  1,2,5

View Answer  
4
Correct Answer :

1,2/3,5/3


Explanation :
No Explanation available for this question
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