1
GATE CSE 2023
MCQ (Single Correct Answer)
+2
-0.67

A Boolean digital circuit is composed using two 4-input multiplexers (M1 and M2) and one 2-input multiplexer (M3) as shown in the figure. X0-X7 are the inputs of the multiplexers M1 and M2 and could be connected to either 0 or 1. The select lines of the multiplexers are connected to Boolean variables A, B and C as shown.

GATE CSE 2023 Digital Logic - Combinational Circuits Question 3 English

Which one of the following set of values of (X0, X1, X2, X3, X4, X5, X6, X7) will realise the Boolean function $$\overline A + \overline A \,.\,\overline C + A\,.\,\overline B \,.\,C$$ ?

A
(1, 1, 0, 0, 1, 1, 1, 0)
B
(1, 1, 0, 0, 1, 1, 0, 1)
C
(1, 1, 0, 1, 1, 1, 0, 0)
D
(0, 0, 1, 1, 0, 1, 1, 1)
2
GATE CSE 2023
MCQ (Single Correct Answer)
+2
-0.67

Consider the IEEE-754 single precision floating point numbers P=0xC1800000 and Q=0x3F5C2EF4.

Which one of the following corresponds to the product of these numbers (i.e., P $$\times$$ Q), represented in the IEEE-754 single precision format?

A
0x404C2EF4
B
0x405C2EF4
C
0xC15C2EF4
D
0xC14C2EF4
3
GATE CSE 2023
MCQ (Single Correct Answer)
+1
-0.33

The Lucas sequence $$L_n$$ is defined by the recurrence relation:

$${L_n} = {L_{n - 1}} + {L_{n - 2}}$$, for $$n \ge 3$$,

with $${L_1} = 1$$ and $${L_2} = 3$$.

Which one of the options given is TRUE?

A
$${L_n} = {\left( {{{1 + \sqrt 5 } \over 2}} \right)^n} + {\left( {{{1 - \sqrt 5 } \over 2}} \right)^n}$$
B
$${L_n} = {\left( {{{1 + \sqrt 5 } \over 2}} \right)^n} - {\left( {{{1 - \sqrt 5 } \over 3}} \right)^n}$$
C
$${L_n} = {\left( {{{1 + \sqrt 5 } \over 2}} \right)^n} + {\left( {{{1 - \sqrt 5 } \over 3}} \right)^n}$$
D
$${L_n} = {\left( {{{1 + \sqrt 5 } \over 2}} \right)^n} - {\left( {{{1 - \sqrt 5 } \over 2}} \right)^n}$$
4
GATE CSE 2023
MCQ (Single Correct Answer)
+1
-0.33

Let $$A = \left[ {\matrix{ 1 & 2 & 3 & 4 \cr 4 & 1 & 2 & 3 \cr 3 & 4 & 1 & 2 \cr 2 & 3 & 4 & 1 \cr } } \right]$$ and $$B = \left[ {\matrix{ 3 & 4 & 1 & 2 \cr 4 & 1 & 2 & 3 \cr 1 & 2 & 3 & 4 \cr 2 & 3 & 4 & 1 \cr } } \right]$$.

Let $$\mathrm{det}(A)$$ and $$\mathrm{det}(B)$$ denote the determinates of the matrices A and B, respectively.

Which one of the options given below is TRUE?

A
$$\mathrm{det}(A)=\mathrm{det}(B)$$
B
$$\mathrm{det}(B)=-\mathrm{det}(A)$$
C
$$\mathrm{det}(A)=0$$
D
$$\mathrm{det}(AB)=\mathrm{det}(A)+\mathrm{det}(B)$$
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