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Cube roots of unity are
NETNUST Entry TestMathematicsQuadratic Equations
Which of the following are the roots of the equation $x^{2}-3x-4=0$
NETNUST Entry TestMathematicsQuadratic Equations
What will be the value of $a$ in $x^{4}+x^{3}+ax+1$ if 1 is the root of the expression?
NETNUST Entry TestMathematicsQuadratic Equations
The sum of all the fourth roots of unity is
NETNUST Entry TestMathematicsQuadratic Equations
Real fourth roots of unity are
NETNUST Entry TestMathematicsQuadratic Equations
Sum of the reciprocals of fourth roots of unity is?
NETNUST Entry TestMathematicsQuadratic Equations
If $x=3y$ and $3x-2y=7$, which of the following is the value of $y$ that satisfies both equations?
NETNUST Entry TestMathematicsQuadratic Equations
$ax^{2}+bx+c=0$ has only one root if
NETNUST Entry TestMathematicsQuadratic Equations
If $1$, $\omega$ and $\omega^{2}$ are three cube roots of unity, then $(1-\omega)(1-\omega^{2})(1-\omega^{4})(1-\omega^{5})=$
NETNUST Entry TestMathematicsQuadratic Equations
If $1$, $\omega$ and $\omega^{2}$ are three cube roots of unity then $(1+\omega^{2})^{4}$=
NETNUST Entry TestMathematicsQuadratic Equations
If $\omega$ is the complex root of unity, then $(1+\omega-\omega^{2})^{3}-(1-\omega+\omega^{2})^{3}$=
NETNUST Entry TestMathematicsQuadratic Equations
If $\omega$ is the complex root of unity then $\omega^{-3}$=
NETNUST Entry TestMathematicsQuadratic Equations
Multiple-choice question
NETNUST Entry TestMathematicsQuadratic Equations
The product of all the fourth roots of unity is
NETNUST Entry TestMathematicsQuadratic Equations
Multiple-choice question
NETNUST Entry TestMathematicsQuadratic Equations
If $\frac{-1+\sqrt{3}\iota}{2}$ and 1 are two cube roots of unity, then third is
NETNUST Entry TestMathematicsQuadratic Equations
If $\omega=\frac{-1+\sqrt{3}\iota}{2}$ then $\omega^{3}$=
NETNUST Entry TestMathematicsQuadratic Equations
Product of the complex cube roots of unity is equal to
NETNUST Entry TestMathematicsQuadratic Equations
If $\omega$ is the complex cube root of unity, then $\omega^{-12}$=
NETNUST Entry TestMathematicsQuadratic Equations
Each complex cube root of unity is square of
NETNUST Entry TestMathematicsQuadratic Equations
If $\omega$ is the complex cube root of unity, then $\omega^{3}$=
NETNUST Entry TestMathematicsQuadratic Equations
When the polynomial $Px^{2}+2x^{3}+qx+c$ is divided by x+1 and x-2 the remainder remains P+q=
NETNUST Entry TestMathematicsQuadratic Equations
Which of the following is not the factor of $x^{4}-13x^{2}+36$
NETNUST Entry TestMathematicsQuadratic Equations
If $f(x)=3x^{2}+Px-2$ and f(-2)=2 then P=
NETNUST Entry TestMathematicsQuadratic Equations
What value of x is the solution of the polynomial $x^{3}-28x-48=0$
NETNUST Entry TestMathematicsQuadratic Equations