Previous 10 Questions — JAMIA MCA 2017
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Let 10 is the cardinality of set A. The number of bijective mappings from set A to itself is
Topic: JAMIA MCA 2017
If the roots of equation $(b-c)x^2 + (c-a)x + (a-b) = 0$ be equal, then $a,b,c$ are in
Topic: JAMIA MCA 2017
Three of the six vertices of a regular hexagon are chosen at random.
The probability that the triangle formed is equi…
Topic: JAMIA MCA 2017
The area of the triangle with vertices $A(a, b+c)$, $B(b, c+a)$ and $C(c, a+b)$ is equal to
Topic: JAMIA MCA 2017
A point $P$ on the $y$-axis is equidistant from the points $A(-5,4)$ and $B(3,-2)$.
Its coordinate is
Topic: JAMIA MCA 2017
$(A - B) - A$ is equal to
Topic: JAMIA MCA 2017
Let $A$ and $B$ be two disjoint subsets of a universal set $E$.
Then $(A \cup B)\cap B'$ is equal to
Topic: JAMIA MCA 2017
Two dice are thrown simultaneously.
The probability of obtaining a total score of $5$ is
Topic: JAMIA MCA 2017
Let $\vec{A} = \hat{i} - \hat{j} + \hat{k}$ and $\vec{C} = -\hat{i} - \hat{j}$ be two vectors.
Which of the following…
Topic: JAMIA MCA 2017
If $A = \left[\begin{array}{cc}
x & 2 \\
2 & x
\end{array}\right]$ and $|A^2| = 0$, then $x$ is equal to
Topic: JAMIA MCA 2017
Next 10 Questions — JAMIA MCA 2017
Ascending by ID
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Let cardinality of set A and B are 2 and 5 respectively. The number of relations from A to B is
Topic: JAMIA MCA 2017
Let $f:\mathbb{R}\to\mathbb{R},\; g:\mathbb{R}\to\mathbb{R}$ be given by $f(x)=2x-3$ and $g(x)=x/2$.
Then $(f\circ g)^{…
Topic: JAMIA MCA 2017
Let $f:\mathbb{R}\to\mathbb{R}$ be defined by $f(x)=x^{2}+5$. Then the value of $f^{-1}(4)$ is
Topic: JAMIA MCA 2017
If $g:\mathbb{R}\to\mathbb{R}$ is defined by $g(x)=x^{2}-2$, then the value of $g^{-1}(23)$ is
Topic: JAMIA MCA 2017
Let cardinality of A and B are 3 and 10 respectively. The number of one-to-one functions from A to B is
Topic: JAMIA MCA 2017
Let $A=\{1,2,3,4\}$ and $B=\{a,b\}$. The number of surjective mappings from A to B is
Topic: JAMIA MCA 2017
Let $z=\sqrt{3}+i$ be a complex number and $\bar z$ its conjugate. The $|\arg z|+|\arg \bar z|$ is equal to
Topic: JAMIA MCA 2017
The $\dfrac{(\sqrt3+i)^{17}}{(1-i)^{50}}$ is equal to …
Topic: JAMIA MCA 2017
For which value of $x$, $\left(\dfrac{1+i}{1-i}\right)^{x}=1$ ?
Topic: JAMIA MCA 2017
If $\omega$ is a cube root of unity, the value of $(1-\omega-\omega^{2})(1+\omega^{3})$ is …
Topic: JAMIA MCA 2017
