12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A
Published on: 02/09/2022
QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 12 Maths Subject - Discrete Mathematics, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
Download Tamil Nadu 12th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
'+' is not a binary operation on ___________
~
z
c
Q- {0}
2.
If p is true and q is unknown, then _________
~ p is true
p v (~p) is false
p ∧ (~p) is true
p v q is true
3.
Let p: Kamala is going to school
q: There are 20 students in the class. Then Kamala is not going to school or there are 20 students in the class is represented by
p v q
p ∧ q
~ p
~ p v q
4.
The number whose multiplication universe does not exist in C.
0
1
0
1
5.
If a * b = a2b2 - ab then 3 * (1 * 1)
0
1
2
4
6.
7.
Define * on Z by a * b = a + b + 1 ∀ a,b \(\in \) Z. Then the identity element of z is ________
1
0
1
-1
8.
The identity element in the group {R - {1},x} where a * b = a + b - ab is __________
0
1
\(\frac { 1 }{ a-1 } \)
\(\frac { a }{ a-1 } \)
9.
Which of the following is a contradiction?
p v q
p ∧ q
q v ~ q
q ∧ ~ q
10.
Which of the following is a tautology?
p ν q
p ∧ q
q v ~ q
q ∧ ~ q
11.
Which one of the following is not a statement?
2 + 3 =5
How beautiful is this flower?
Delhi is the capital of Tamil Nadu
A triangle has found angles.
12.
The identity element of \(\left\{ \left( \begin{matrix} x & x \\ x & x \end{matrix} \right) \right\} \) |x \(\in \) R, x ≠ 0} under matrix multiplication is __________
\(\left( \begin{matrix} 1 & 0 \\ 0 & 1 \end{matrix} \right) \)
\(\left( \begin{matrix} \frac { 1 }{ 4x } & \frac { 1 }{ 4x } \\ \frac { 1 }{ 4x } & \frac { 1 }{ 4x } \end{matrix} \right) \)
\(\left( \begin{matrix} \frac { 1 }{ 2 } & \frac { 1 }{ 2 } \\ \frac { 1 }{ 2 } & \frac { 1 }{ 2 } \end{matrix} \right) \)
\(\left( \begin{matrix} \frac { 1 }{ 2x } & \frac { 1 }{ 2x } \\ \frac { 1 }{ 2x } & \frac { 1 }{ 2x } \end{matrix} \right) \)
13.
14.
If * is defined by a * b = a2 + b2 + ab + 1, then (2 * 3) * 2 is _____________
20
40
400
445
15.
The binary operation * defined on a set s is said to be commutative if ______
a*b \(\in \) S ∀ a, b \(\in \) S
a*b = b*a ∀ a, b \(\in \) S
(a*b) * c = a*(b*c) ∀ a, b \(\in \) S
a*b = e ∀ a, b \(\in \) S
1.
(d)
Q- {0}
2.
(d)
p v q is true
3.
(d)
~ p v q
4.
(a)
0
5.
(a)
0
6.
(d)
7.
(d)
-1
8.
(a)
0
9.
(d)
q ∧ ~ q
10.
(c)
q v ~ q
11.
(b)
How beautiful is this flower?
12.
(c)
\(\left( \begin{matrix} \frac { 1 }{ 2 } & \frac { 1 }{ 2 } \\ \frac { 1 }{ 2 } & \frac { 1 }{ 2 } \end{matrix} \right) \)
13.
(c)
14.
(d)
445
15.
(b)
a*b = b*a ∀ a, b \(\in \) S
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
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Tamilnadu Stateboard Standards
