# The roots of 6x4-5x3-38x2-5x+6=0 are

1.  2,1/2,3,1/3

2.  -2,-1/2,3,1/3

3.  2,-1/2,-3,1/3

4.  -2,1/2,-3,1/3

4

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

Explanation :
No Explanation available for this question

# The roots of 2x5+x4-12x3-12x2+x+2=0 are

1.  2±√3, 3±2√2

2.  ±1,2,1/2,5±√11i/6

3.  -1,-2,-1/2,3±√5/2

4.  2,1/2,3,1/3

4

-1,-2,-1/2,3±√5/2

Explanation :
No Explanation available for this question

# The roots of x5-5x4+9x3-9x2+5x-1=0 are

1.  1,1,-2,-1/2

2.  1,1±√3i/2, 3±√5/2

3.  1,-1,-2,-1/2,3,1/3

4.  2,1/2,3,1/3

4

1,1±√3i/2, 3±√5/2

Explanation :
No Explanation available for this question

# The roots of 6x6-25x5+31x4-31x2+25x-6=0 are

1.  2±√3, 3±2√2

2.  ±1,2,1/2,5±√11i/6

3.  -1,-2,-1/2,√3±√5/2

4.  2,1/2,3,1/3

4

±1,2,1/2,5±√11i/6

Explanation :
No Explanation available for this question

# The roots of 6x6-5x5-44x4-+44x2+5x-6=0 are

1.  1,1,-2,-1/2

2.  1,1±√3i/2, 3±√5/2

3.  1,-1,-2,-1/2,3,1/3

4.  2,1/2,3,1/3

4

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

Explanation :
No Explanation available for this question

# I:The equation whose roots are 1,-1,3 is x3-3x2-x+3=0. II:The equation whose roots are -2,3

1.   only I is true

2.  only II is true

3.  both I and II are true

4.  neither I nor II true

4

both I and II are true

Explanation :
No Explanation available for this question

# I:The roots of 4x3+20x2-23x+6=0 are 1,2,-6. II:The roots of 15x3-23x2+9x-1=0 are 1,1/3,1/5.

1.  only I is true

2.  only II is true

3.  both I and II are true

4.  neither I nor II true

4

only II is true

Explanation :
No Explanation available for this question

# The angle at which the circles x2+y2+8x-2y-9=0, x2+y2-2x+8y-7=0 intersect is

1.  π/6

2.  π/4

3.  π/3

4.  π/2

4

π/2

Explanation :
No Explanation available for this question

# The point (3, -4) lies on both the circles x2+y2-2x+8y+13=0 and x2+y2-4x+6+11=0. Then the angle between the circles is

1.  600

2.  Tan-1(1/2)

3.  Tan-1(3/5)

4.  1350

4

1350

Explanation :
No Explanation available for this question

1.  -24

2.  24

3.  12

4.  15

4