دو درجی مساواتیں

گیارہویں جماعت · ریاضی · 5 سوالات

نام: ____________________   تاریخ: ____________

1. The roots of x2 - 3x + 2 = 0 are:

   • A 3 and 2
   • B 1 and 2
   • C -1 and -2
   • D 1 and -2

2. If the roots of a quadratic are real and equal, the discriminant is:

   • A Negative
   • B Zero
   • C Positive
   • D Undefined

3. If a and b are roots of x2 - 5x + 6 = 0, then a + b equals:

   • A -6
   • B 5
   • C 6
   • D -5

4. A quadratic with roots 2 and 3 is:

   • A x2 - x + 6 = 0
   • B x2 - 5x + 6 = 0
   • C x2 - 6x + 5 = 0
   • D x2 + 5x + 6 = 0

5. The cube roots of unity are 1, w and w2. The value of 1 + w + w2 is:

   • A -1
   • B 0
   • C 3
   • D 1