This chapter is currently out of syllabus
1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Negation of the statement :

$$\sqrt 5 $$ is an integer or 5 is an irrational is :
A
$$\sqrt 5 $$ is not an integer and 5 is not irrational.
B
$$\sqrt 5 $$ is irrational or 5 is an integer.
C
$$\sqrt 5 $$ is an integer and 5 is irrational.
D
$$\sqrt 5 $$ is not an integer or 5 is not irrational.
2
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which of the following statements is a tautology?
A
~(p $$ \wedge $$ ~q) $$ \to $$ p $$ \vee $$ q
B
~(p $$ \vee $$ ~q) $$ \to $$ p $$ \vee $$ q
C
~(p $$ \vee $$ ~q) $$ \to $$ p $$ \wedge $$ q
D
p $$ \vee $$ (~q) $$ \to $$ p $$ \wedge $$ q
3
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which one of the following is a tautology?
A
P $$ \wedge $$ (P $$ \vee $$ Q)
B
P $$ \vee $$ (P $$ \wedge $$ Q)
C
Q $$ \to $$ (P $$ \wedge $$ (P $$ \to $$ Q))
D
(P $$ \wedge $$ (P $$ \to $$ Q)) $$ \to $$ Q
4
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Let A, B, C and D be four non-empty sets. The contrapositive statement of "If A $$ \subseteq $$ B and B $$ \subseteq $$ D, then A $$ \subseteq $$ C" is :
A
If A ⊈ C, then A ⊈ B or B ⊈ D
B
If A ⊈ C, then A ⊈ B and B $$ \subseteq $$ D
C
If A $$ \subseteq $$ C, then B $$ \subset $$ A or D $$ \subset $$ B
D
If A ⊈ C, then A $$ \subseteq $$ B and B $$ \subseteq $$ D
JEE Main Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12