Algebra
Quadratic EquationsSequences and SeriesPermutations and CombinationsProbabilitySets and RelationsBinomial TheoremVector AlgebraThree Dimensional GeometryMatrices and DeterminantsStatisticsLinear ProgrammingComplex NumbersTrigonometry
Trigonometric EquationsProperties of TrianglesCalculus
FunctionsLimits, Continuity and DifferentiabilityApplication of DerivativesDefinite IntegrationArea Under The CurvesDifferential EquationsCoordinate Geometry
Straight Lines and Pair of Straight LinesCircleComplex Numbers
Practice QuestionsMCQ (Single Correct Answer)
1
Consider the following subset of the $X Y$-plane.
$$ S=\left\{\left(|z-\mathrm{i} z|,|z|^2\right): \quad z \text { is a complex number }\right\} $$
Which one of the following statements is correct?
IAT (IISER) 2024
2
Let $\omega$ be a complex root of the quadratic polynomial $x^2+x+1$. The value of
$$ \left(\omega+\frac{1}{\omega}\right) \cdot\left(\omega^2+\frac{1}{\omega^2}\right) \cdots\left(\omega^{100}+\frac{1}{\omega^{100}}\right) $$
is
IAT (IISER) 2022
3
Let $a, b$ be nonzero real numbers. If $p(x)=x^n+c_{n-1} x^{n-1}+\cdots+c_0$, where $c_{n-1}, \ldots, c_0$ are integers and $n \geq 3$, then which of the following statements is correct?
IAT (IISER) 2020