Theory of Quadratic Equations

• P(Product of the roots) A
• S (Sum of the roots) B
• D (Difference of the roots) C
• R (Ratio of the roots) D

• 
  A
• 
  B
• 
  C
• 
  D

Product of the roots of the equation 3x²-5x+7=0:

• 3⁷ A
• 7³ B
• 
  C
• 
  D

Identify the equation whose roots are imaginary and unequal:

• 2x²-x+1=0 A
• x²+8x+16=0 B
• 3x²+4x+2=0 C
• x²-7x+7=0 D

By reducing high power omega we get, (img):

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

The product of three cube roots of unity is:

• Zero A
• Four B
• Two C
• One D

Two square roots of unity are:

• 1,-1 A
• 
  B
• 
  C
• 
  D

Sum roots of 4x²-3x+6=0:

• 
  A
• 
  B
• 
  C
• 
  D

Roots of the equation 4x²-5x+2=0 are:

• Irrational A
• Imaginary B
• Rational C
• None of these D

If a = -2, b = -1 and c = -1, then discriminant is equal to:

• 17 A
• -17 B
• -7 C
• 7 D

The value of i is equal to:

• 
  A
• 
  B
• 
  C
• 
  D

The expression "b²-4ac" of a quadratic equation is called:

• Determinant A
• Redicand B
• Discriminant C
• Index D

The nature of the roots of equation ax²+bx+c=0, is determined by:

• Sum of the roots A
• Product of the roots B
• Synthetic division C
• Discriminant D

The nature of roots depends on the value of:

• -b+4ac A
• b²+4c B
• b²-4ac C
• -b+4ac² D