1
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction : Consider the following for the items that follow :
Let Z 1 and Z 2 be any two complex numbers such that $\rm Z_1^2+Z_2^2+Z_1Z_2=0$
what is the value of $\rm \left|\frac{Z_1}{Z_2}\right|$,
2
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction : Consider the following for the items that follow :
Let Z 1 and Z 2 be any two complex numbers such that $\rm Z_1^2+Z_2^2+Z_1Z_2=0$
what is the value of $\rm \frac{1}{2}+Re\left(\frac{Z_1}{Z_2}\right)?$
3
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
If $z$ is any complex number and $i z^3+z^2-z+i=0$, where $i=\sqrt{-1}$, then what is the value of $(|z|+1)^2$ ?
4
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
If $x, y$ and $z$ are the cube roots of unity, then what is the value of $xy + yz + zx$?
Questions Asked from Complex Numbers (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
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