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Que. The minimum number of states of the non-deterministic finite automation which accepts the language
{a b a bn| n  ≥  0} ∪ {a b an|n  ≥ 0} is 
a. 3
b. 4
c. 5
d. 6
Answer:5
Urvashi :(September 04, 2019) Plz explain this
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Similar Questions:

Given the following statements :

(i) The power of deterministic finite state machine and nondeterministic finite state machine are same.
(ii) The power of deterministic pushdown automaton and nondeterministic pushdown automaton are same.

Which of the above is the correct statement(s) ?
A grammar G is LL(1) if and only if the following conditions hold for two distinct productions A → α | β

I. First (α) ∩ First (β) ≠ {a} where a is some terminal symbol of the grammar.
II. First (α) ∩ First (β) ≠ λ
III. First (α) ∩ Follow(A) = φ if λ є First (β)
The statements s1 and s2 are given as:

s1: Context sensitive languages are closed under intersection, concatenation, substitution and inverse homomorphism.
s2: Context free languages are closed under complementation, substitution and homomorphism.

Which of the following is correct statement?
Consider the following problems:

(i) Whether a finite state automaton halts on all inputs?
(ii) Whether a given context free language is regular?
(iii) Whether a Turing machine computes the product of two numbers?

Which one of the following is correct?
Regular expression for the complement of language L = {a^n b^m I n ≥ 4, m ≤ 3} is
Given the following statements :
(A) A class of languages that is closed under union and complementation has to be closed under intersection.
(B) A class of languages that is closed under union and intersection has to be closed under complementation.
Which of the following options is correct?
The number of substrings that can be formed from string given by

a d e f b g h n m p

is
Consider the following statements:

S1 : There exists no algorithm for deciding if any two Turing machines M1 and M2 accept the same language.
S2 : The problem of determining whether a Turing machine halts on any input is undecidable.

Which of the following options is correct?
Which of the following is FALSE ?
Let L = {0^n1^n | n≥0} be a context free language.
Which of the following is correct?
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