Recent questions in Engineering Mathematics

56 votes
3 answers
9161
What is the probability that divisor of $10^{99}$ is a multiple of $10^{96}$?$\left(\dfrac{1}{625}\right)$$\left(\dfrac{4}{625}\right)$$\left(\dfrac{12}{625}\right)$$\lef...
31 votes
8 answers
9163
What is the value of $ \displaystyle\lim_{n \to \infty}\left(1 - \frac{1}{n}\right)^{2n}$ ?$0$$e^{-2}$$e^{-1/2}$$1$
27 votes
4 answers
9164
Consider the set $S = \{1, ω, ω^2\}$, where $ω$ and $ω^2$ are cube roots of unity. If $*$ denotes the multiplication operation, the structure $(S, *)$ formsA GroupA R...
32 votes
4 answers
9165
What is the possible number of reflexive relations on a set of $5$ elements?$2^{10}$$2^{15}$$2^{20}$$2^{25}$
51 votes
5 answers
9166
1 votes
2 answers
9167
A pair of dice is rolled again and again till a total of 5 or 7 is obtained. The chance that a total of 5 comes before a total of 7 is??
37 votes
7 answers
9172
The minimum number of colours required to colour the following graph, such that no two adjacent vertices are assigned the same color, is$2$$3$$4$$5$
35 votes
4 answers
9173
40 votes
4 answers
9177
The following is the incomplete operation table of a $4-$element group.$$\begin{array}{|l|l|l|l|l|} \hline \textbf{*} & \textbf{e}& \textbf{a} &\textbf{b} & \textbf{c}\\\...
28 votes
4 answers
9178
How many solutions does the following system of linear equations have?$-x + 5y = -1$$x - y = 2$$x + 3y = 3$infinitely manytwo distinct solutionsuniquenone
33 votes
5 answers
9179
35 votes
4 answers
9180
Let $A, B, C, D$ be $n \times n$ matrices, each with non-zero determinant. If $ABCD = I$, then $B^{-1}$ is $D^{-1}C^{-1}A^{-1}$ $CDA$ $ADC$ Does not necessarily e...