1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
$\rm A=\begin{bmatrix} 1 & a \\ 0 & 1 \end{bmatrix}$ where a ∈ ℕ, then is A100 - A50 - 2A25 equal to?
where I is the identity matrix.
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If $\rm \begin{vmatrix} a & -b & a - b - c\\ -a & b & -a + b - c\\ -a & -b & -a - b + c \end{vmatrix} - kabc = 0$ (a ≠ 0, b ≠ 0, c ≠ 0)then what is the value of k?
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is $\rm \sum\limits_{n=1}^{8n+7} i^n$ equal to, where i = √-1?
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If z = x + iy, where i = √-1, then what does the equations zz̅ + ∣z∣2 + 4(z + z̅) - 48 = 0 represent?
Paper Analysis
Total Questions
Mathematics 120
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