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Math 11 Chapter 4
Quadratic equations
Test - 1
1.
Sum of all four fourth roots of unity is ………………?
a) Circum circle
b) Circum radius
c) Infinity circle
d) Escribed circle, ex-circle
2.
20. Both complex fourth roots of unity are ……………… of each other.
a)
b)
c)
d)
3.
Equations involving ……………… of the variable are called radical equation?
a) Law of Quadrent
b) Law of Rest
c) Law of tangent
d) Law of Motion
4.
The solutions of an equation are also called its ………………?
a) Solvent
b) Roots
c) No answer is correct
d) Branches
5.
The real fourth roots of unity are ……………… of each other?
a) ex-circle
b) ex-centres
c) in-centre
d) in-circle
6.
1+ ω + ω
2
= ………………?
a) Circum circle
b) Infinity
c) Restricted
d) Circum radius
7.
Sum of all three cube roots of unity is ………………?
a) Infinity
b) Circum radius
c) Circum circle
d) Restricted
8.
System of simultaneous equation involves ……….. or more equations.
a) 1
b) 3
c) 2
d) 4
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