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Answers by LeenSharma

1 votes
1
MadeEasy Test Series: Linear Algebra - Matrices
If $A=\begin{bmatrix} cos \alpha & sin \alpha \\ -sin \alpha & cos \alpha \end{bmatrix}$ be such that $A +A ^{'}=I$ then the value of $\alpha$ is
If $A=\begin{bmatrix} cos \alpha & sin \alpha \\ -sin \alpha & cos \alpha \end{bmatrix}$be such that $A +A ^{'}=I$ then the value of $\alpha$ is
3 votes
3
Which of the following is NOT true?
$(a^+)^∗=(a^∗)^+$ $(a^+)^+=aa^+$ $(a^∗)^∗=a^∗$ $aa^+ +a=a^+$
$(a^+)^∗=(a^∗)^+$$(a^+)^+=aa^+$$(a^∗)^∗=a^∗$$aa^+ +a=a^+$
2 votes
5
Matrices
Consider the following matrix $A=\begin{bmatrix} a&a^{2} &a^{3}-1 \\ b& b^{2} &b^{3}-1 \\ c& c^{2}&c^{3}-1 \end{bmatrix}$ if $|A|=0$, then the value of $abc$ is _______________
Consider the following matrix$A=\begin{bmatrix} a&a^{2} &a^{3}-1 \\ b& b^{2} &b^{3}-1 \\ c& c^{2}&c^{3}-1 \end{bmatrix}$if $|A|=0$, then the value of $abc$ is ___________...
3 votes
6
Aptitude
The sum of all the real roots of the equation $|x-2|^{2}+|x-2|-2=0$ is;
The sum of all the real roots of the equation $|x-2|^{2}+|x-2|-2=0$ is;
2 votes
8
UGC NET CSE | November 2017 | Part 2 | Question: 8
Let $P$ and $Q$ be two propositions $\neg (P \leftrightarrow Q)$ is equivalent to $P\leftrightarrow \neg Q$ $\neg P\leftrightarrow Q$ $\neg P \leftrightarrow \neg Q$ $Q\rightarrow P$
Let $P$ and $Q$ be two propositions $\neg (P \leftrightarrow Q)$ is equivalent to$P\leftrightarrow \neg Q$$\neg P\leftrightarrow Q$$\neg P \leftrightarrow \neg Q$$Q\right...
1 votes
9
UGC NET CSE | November 2017 | Part 2 | Question: 4
How many distinguishable permutations of the letters in the word of BANANA are there? $720$ $120$ $60$ $360$
How many distinguishable permutations of the letters in the word of BANANA are there?$720$$120$$60$$360$
6 votes
10
#DAG #Ullman
((x+y)-((x+y)*(x-y)))+((x+y)*(x-y)) Is this correct DAG for given expression ?
((x+y)-((x+y)*(x-y)))+((x+y)*(x-y))Is this correct DAG for given expression ?
7 votes
11
Discrete maths Combinatorics
How many ways can the letters $\{a,b,c,d,e\}$ be placed into $3$ identical boxes such that no box is empty?
How many ways can the letters $\{a,b,c,d,e\}$ be placed into $3$ identical boxes such that no box is empty?
4 votes
12
rank of matrix
If X=[x1 x2 x3… xn ]T is an n-tuple non-zero vector. Then m×n matrix V=XXT will be Is orthogonal Having a rank 1 . Having a rank n-1 Having a rank zero
If X=[x1 x2 x3… xn ]T is an n-tuple non-zero vector. Then m×n matrix V=XXT will be Is orthogonal Having a rank 1. Having a rank n-1 Having a rank zero
8 votes
14
ace test series
If $A=\left \{ 1,2,3 \right \}$, then number of relations possible on $A$, which are neither reflexive nor symmetric is _____________
If $A=\left \{ 1,2,3 \right \}$, then number of relations possible on $A$, which are neither reflexive nor symmetric is _____________
3 votes
15
Practice Set
The system of equation x + y + z = 1, 2x + 3y + 4z = 1 and 4x + 5y + 6z = 2 has (a) unique solution (b) infinite solution (c) no solution (d) none of these
The system of equation x + y + z = 1, 2x + 3y + 4z = 1 and 4x + 5y + 6z = 2 has(a) unique solution (b) infinite solution(c) no solution (d) none of these
0 votes
16
propositional logic
A) ((P->Q)->Q) ==> P V Q is given How i solved ((~P V Q)-->Q) ~(~P V Q) V Q (P and ~Q) V Q (P V Q) and ( ~Q VQ) (P V Q) and Q after this.. how to proceed? B) ( P <--> Q ) ==> (P and Q ) V ( ~p and ~Q)..............how ??
A) ((P->Q)->Q) == P V Q is givenHow i solved((~P V Q) >Q) ~(~P V Q) V Q(P and ~Q) V Q(P V Q) and ( ~Q VQ)(P V Q) and Qafter this.. how to proceed?B) ( P < Q ) == (P...
2 votes
17
TOC: Number of states in minimum DFA
I think, there will be 4 states in minimum DFA, following states will be merged in the resulted DFA {q0&q3}, {q4&q5}, {q1&q6}, {q2&q7}
I think, there will be 4 states in minimum DFA, following states will be merged in the resulted DFA{q0&q3}, {q4&q5}, {q1&q6}, {q2&q7}
0 votes
18
min number of states
(a+b)*aa(a+b) mininum num of states to represent this
(a+b)*aa(a+b)mininum num of states to represent this
0 votes
20
peter linzdfa
(4.d) dfa of L (((aa*)* b)*).
(4.d) dfa of L (((aa*)* b)*).
2 votes
21
BST search
Identify the correct sequence for searching 105 in a binary search tree? a. 500,250,190,220,150,120,105 b. 80,800,500,90,270,280,105 c. 20,30,80,200,90,120,105 d. 30,50,80,200,90,120,105 Plz help me.
Identify the correct sequence for searching 105 in a binary search tree?a. 500,250,190,220,150,120,105b. 80,800,500,90,270,280,105c. 20,30,80,200,90,120,105d. 30,50,80,20...
3 votes
22
Number of States in minimal DFA
How many states will have the minimal DFA accepting the language L={w|wϵ{0,1}* and contains atleast one 0 and two 1's} a) 6 b)7 c)8 d)12
How many states will have the minimal DFA accepting the language L={w|wϵ{0,1}* and contains atleast one 0 and two 1's}a) 6b)7c)8d)12
0 votes
23
minimal DFA
construct the minimal DFA for the language L={ 3rd symbol from the R.H.S is 'a'} and ∈={a.b}.
construct the minimal DFA for the language L={ 3rd symbol from the R.H.S is 'a'} and ∈={a.b}.
0 votes
24
minimal DFA
construct the minimal DFA for the language L={ 3rd symbol from the R.H.S is 'a'} and ∈={a.b}.
construct the minimal DFA for the language L={ 3rd symbol from the R.H.S is 'a'} and ∈={a.b}.
3 votes
25
REGULAR GRAMMARS
if a is a terminal and S, A, B are three non-terminals, then which of the following are regular grammars? (a) S → ε, A → aS|b (b) A → aB|a, B → bA|b (c) A → Ba|Bab (d) A → abB|aB please explain how u proceed? The answer is given "b"
if a is a terminal and S, A, B are three non-terminals, then which of the following are regular grammars?(a) S → ε, A → aS|b (b) A → aB|a, B → bA|b(c) A → Ba|B...
5 votes
26
GATE Aptitude
Look at this series: 8, 6, 9, 23, 87, ... What number should come next? A. 128 B. 226 C. 324 D. 429
Look at this series: 8, 6, 9, 23, 87, ... What number should come next?A.128B.226C.324D.429
2 votes
27
madeeasy#workbook
Find the number of parse trees which can generate 'a' ? $G\rightarrow ATE / a /\epsilon$ $A\rightarrow bT/b/a/\epsilon$ $T\rightarrow aE/b/a/\epsilon$ $E\rightarrow a/\epsilon$
Find the number of parse trees which can generate 'a' ?$G\rightarrow ATE / a /\epsilon$$A\rightarrow bT/b/a/\epsilon$$T\rightarrow aE/b/a/\epsilon$$E\rightarrow a/\epsilo...
0 votes
28
ace test
The keys 7,3,11,13 are inserted into avl tree .what will be the the root once 12 is inserted into above AVL tree.
The keys 7,3,11,13 are inserted into avl tree .what will be the the root once 12 is inserted into above AVL tree.
5 votes
29
UGC NET CSE | June 2007 | Part 2 | Question: 9
If $A\oplus B=C,$ then: $A\oplus C=B$ $B\oplus C=A$ $A\oplus B\oplus C=1$ $A\oplus B\oplus C=0$
If $A\oplus B=C,$ then:$A\oplus C=B$$B\oplus C=A$$A\oplus B\oplus C=1$$A\oplus B\oplus C=0$
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