دو درجی مساواتیں

Written by Hassan Raza (Mathematics)

گیارہویں جماعت · ریاضی · 8 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

6. Solve x² - 4x + 4 = 0.

   • A x = 2 (repeated)
   • B x = 4
   • C x = 2 or -2
   • D x = -2

7. If one root of x² - 5x + 6 = 0 is 2, the other is:

   • A 3
   • B -3
   • C 4
   • D -2

8. The complex cube roots of unity are:

   • A i and -i
   • B 1 and -1
   • C 2 and 3
   • D w and w²