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Published on: 05/11/2020
12th Standard Maths English Medium Free Online Test 1 Mark Questions 2020 - Part Six
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.
Which one of the following is not true?
Negation of a negation of a statement is the statement itself
If the last column of the truth table contains only T then it is a tautology.
If the last column of its truth table contains only F then it is a contradiction
If p and q are any two statements then p↔️q is a tautology.
2.
If z = \(\frac { 1 }{ (2+3i)^{ 2 } } \) then |z| = ____________
\(\frac { 1 }{ 13 } \)
\(\frac { 1 }{ 5} \)
\(\frac { 1 }{ 12 } \)
none of these
3.
lf the root of the equation x3 + bx2+ cx - 1 = 0 form an lncreasing G.P, then ___________
one of the roots is 2
one of the roots is 1
one of the roots is -1
one of the roots is -2
4.
If A = \(\left[ \begin{matrix} 2 & 0 \\ 1 & 5 \end{matrix} \right] \) and B = \(\left[ \begin{matrix} 1 & 4 \\ 2 & 0 \end{matrix} \right] \) then |adj (AB)| =
-40
-80
-60
-20
5.
6.
7.
The radius of the circle passing through the point(6, 2) two of whose diameter are x + y = 6 and x + 2y = 4 is
10
\( {2} \sqrt {5}\)
6
4
8.
If sin-1 x+sin-1 y+sin-1 \(z = \frac{3\pi}{2}\), the value of x2017+y2018+z2019\(-\frac { 9 }{ { x }^{ 101 }+{ y }^{ 101 }+{ z }^{ 101 } } \)is
0
1
2
3
9.
If \(\alpha \) and \(\beta \) are the roots of x2+x+1 = 0, then \({ \alpha }^{ 2020 }+{ \beta }^{ 2020 }\) is
-2
-1
1
2
10.
in+in+1+in+2+in+3 is
0
1
-1
i
1.
(d)
If p and q are any two statements then p↔️q is a tautology.
2.
(a)
\(\frac { 1 }{ 13 } \)
3.
(b)
one of the roots is 1
4.
(b)
-80
5.
(a)
6.
(d)
7.
(b)
\( {2} \sqrt {5}\)
8.
(a)
0
9.
(b)
-1
10.
(a)
0
12th Standard Syllabus & Materials
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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
French
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