29 votes
2 answers
1201
Let $r$ denote number system radix. The only value(s) of $r$ that satisfy the equation $\sqrt{121_r}={11}_r$ is/aredecimal $10$decimal $11$decimal $10$ and $11$any value ...
38 votes
2 answers
1203
In the IEEE floating point representation the hexadecimal value $0\text{x}00000000$ corresponds toThe normalized value $2^{-127}$The normalized value $2^{-126}$The normal...
29 votes
6 answers
1204
The following system of equations$x_1 + x_2 + 2x_3 = 1$$x_1 + 2x_2 + 3x_3 = 2$$x_1 + 4x_2 + αx_3 = 4$has a unique solution. The only possible value(s) for $α$ is/are$0$...
28 votes
8 answers
1205
If $P, Q, R$ are subsets of the universal set U, then $$(P\cap Q\cap R) \cup (P^c \cap Q \cap R) \cup Q^c \cup R^c$$ is$Q^c \cup R^c$$P \cup Q^c \cup R^c$$P^c \cup Q^c \c...
25 votes
9 answers
1206
$\displaystyle \lim_{x \to \infty}\frac{x-\sin x}{x+\cos x}$ equals$1$$-1$$\infty$$-\infty$
3 votes
1 answer
1207
64 votes
6 answers
1210
Consider the following $\text{ER}$ diagramThe minimum number of tables needed to represent $M$, $N$, $P$, $R1$, $R2$ is$2$$3$$4$$5$