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mcqs of
,
1 : Which of the following expressions is often related to inductive reasoning?
1
:
Based on repeated experiments
2
:
If and only if statements
3
:
Statement is proven by a theorem
4
:
Based on general principles
2 : Which one of the following statements is true?
1
:
The set of integers is finite
2
:
The sum of the interior angles of any triangle is always 180°
3
:
22/7
4
:
All isosceles triangles are equilateral triangles
3 : Which of the following sentences describe deductive reasoning?
1
:
General conclusions from a limited number of observations.
2
:
Based on repeated experiments
3
:
Based on units of information that are accurate
4
:
Draw conclusion from well-known facts
4 : Which of the following statements is the best to represent the negation of the statement 'The stove is burning'?
1
:
The stove is not burning
2
:
The stove is dim
3
:
The stove is turned to low heat
4
:
It is both burning and not burning
5 : The conjunction of two statements p and q is true when
1
:
Both p and q are false
2
:
Both p and q are true
3
:
Only q is true
4
:
Only p is true
6 : A conditional is regarded as false only when:
1
:
Antecedent is true and consequent is false
2
:
Consequent is true and antecedent is false
3
:
Antecedent is true only
4
:
Consequent is false only
7 : Contrapositive of q → p is
1
:
q → ¬p
2
:
q → ~p
3
:
~p → ~q
4
:
~q → ~p
8 : The statement 'Every integer greater than 2 is a sum of two prime numbers' is:
1
:
theorem
2
:
conjecture
3
:
axiom
4
:
postulate
9 : The statement 'A straight line can be drawn between any two points' is
1
:
Theorem
2
:
Conjecture
3
:
Axiom
4
:
Logic
10 : The conjunction of two statements p and q is denoted by:
1
:
p ∧ q
2
:
p ∨ q
3
:
¬p ∧ ¬q
4
:
¬p ∨ ¬q
11 : The disjunction of negation of two statements p and q is denoted by:
1
:
p ∧ q
2
:
p ∨ q
3
:
¬p ∧ ¬q
4
:
¬p ∨ ¬q
12 : The disjunction of two statements p and q is denoted by
1
:
p ∧ q
2
:
p ∨ q
3
:
¬p ∧ ¬q
4
:
¬p ∨ ¬q
13 : The negation of statement p is denoted by:
1
:
∧p
2
:
∨p
3
:
~p
4
:
–p
14 : The conjunction p∧q is True when p and q are:
1
:
T,T
2
:
T,F
3
:
F,T
4
:
F,F
15 : The disjunction p ∨ q is False when p and q are:
1
:
T,T
2
:
T,F
3
:
F,T
4
:
F,F
16 : Any conditional and its ------ are equivalent.
1
:
negation
2
:
contrapositive
3
:
converse
4
:
inverse
17 : The conjunction of negations of two statements p and q is denoted by:
1
:
p ∧ q
2
:
p ∨ q
3
:
¬p ∧ ¬q
4
:
¬p ∨ ¬q
18 : The statement that has been proved true based on previously known facts is
1
:
axiom
2
:
postulate
3
:
theorem
4
:
proof
19 : Who is considered Father of formal logic?
1
:
Aristotle
2
:
Alfred Noth
3
:
Bertrand Russel
4
:
Kurt Godel
20 : The statement 'The sum of the interior angle of a triangle is 180°' is
1
:
Converse
2
:
Theorem
3
:
Axiom
4
:
Conditional
21 : Which of the following is the odd number for k ∈ N?
1
:
k + 1
2
:
2k
3
:
2k + 1
4
:
2k + 2
22 : If a = b and b = c then a = c is an example of:
1
:
axiom
2
:
postulate
3
:
theorem
4
:
proof
Chapter 8 : Logic
Math 9th MCQs || Ilam Ghar
Math 9th
