Math 11 Chapter 4Quadratic equationsTest - 4

Math 11 Chapter 4
Quadratic equations
Test - 4

1. For what value of k, the sum of roots of the equation x2 _ kx + 4 = 0 is equal
to product of roots.

a) -4
b) - 3
c) - 3
d) 2

2. ω ^-12 = ………………?

a) In-centre
b) in-circle
c) Inscribe circle
d) R (Circum radius)

3. 4. Quadratic formula is given by………………?

a)
b)
c)
d)

4. 17. Four fourth roots of unity are ………………?

a) r = Δ / a
b) a = Δ / s
c) r = Δ / s
d) r = Δ / b

5. For what value equal of k the roots of the equation x2+kx+4=0 are equal.

a) ±3
b) ±4
c) ± 2
d) ± 1

6. 21. Product of all fourth roots of unity is ………………?

a)
b)
c)
d)

7. The degree of the polynomial x⁴ – 5x³ + x² + 4 is ……..

a) 2
b) 4
c) 3
d) 1

8. Quadratic equation will be perfect square if its roots are………

a) None
b) Real and equal
c) Complex
d) Red and unequal

This is more feedback!

This is the feedback!