12th Standard Syllabus & Materials
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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
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Published on: 05/11/2020
12th Standard Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Five
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.
P is the amount of certain substance left in after time t. If the rate of evaporation of the substance is proportional to the amount remaining, then
P = Cekt
P = Ce-kt
P = Ckt
Pt = C
3.
4.
5.
The locus of a point whose distance from (-2,0) is \(\frac { 2 }{ 3 } \) times its distance from the line x = \(\frac { -9 }{ 2 } \) is
a parabola
a hyperbola
an ellipse
a circle
6.
If P(x, y) be any point on 16x2 + 25y2 = 400 with foci F1 (3, 0) and F2 (-3, 0) then PF1 + PF2 is
8
6
10
12
7.
If the function f(x) = sin-1(x2 - 3), then x belongs to
[-1, 1]
[\(\sqrt2\), 2]
\(\\ \\ \\ \left[ -2,-\sqrt { 2 } \right] \cup \left[ \sqrt { 2 } ,2 \right] \)
\([-2,-\sqrt{2}]\)
8.
The principal argument of \(\cfrac { 3 }{ -1+i } \) is
\(\cfrac { -5\pi }{ 6 } \)
\(\cfrac { -2\pi }{ 3 } \)
\(\cfrac { -3\pi }{ 4 } \)
\(\cfrac { -\pi }{ 2 } \)
9.
If α, β and γ are the zeros of x3 + px2 + qx + r, then \(\Sigma \frac { 1 }{ \alpha } \) is
\(-\frac { q }{ r } \)
\(-\frac { p }{ r } \)
\(\frac { q }{ r } \)
\(-\frac { q }{ p } \)
10.
The conjugate of a complex number is \(\cfrac { 1 }{ i-2 } \). Then the complex number is
\(\cfrac { 1 }{ i+2 } \)
\(\cfrac { -1 }{ i+2 } \)
\(\cfrac { -1 }{ i-2 } \)
\(\cfrac { 1 }{ i-2 } \)
1.
(d)
If p and q are any two statements then p↔️q is a tautology.
2.
(b)
P = Ce-kt
3.
(c)
4.
(a)
5.
(c)
an ellipse
6.
(c)
10
7.
(c)
\(\\ \\ \\ \left[ -2,-\sqrt { 2 } \right] \cup \left[ \sqrt { 2 } ,2 \right] \)
8.
(c)
\(\cfrac { -3\pi }{ 4 } \)
9.
(a)
\(-\frac { q }{ r } \)
10.
(b)
\(\cfrac { -1 }{ i+2 } \)
12th Standard Syllabus & Materials
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Tamilnadu Stateboard 12th Standard Subjects
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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
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