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Published on: 01/08/2019
1. RELATIONS AND FUNCTIONS
Download Tamil Nadu 10th 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.
f(x) = (x + 1)3 - (x - 1)3 represents a function which is
linear
cubic
reciprocal
quadratic
2.
If g = {(1,1), (2,3), (3,5), (4,7)} is a function given by g(x) = αx + β then the values of α and β are
(-1,2)
(2,-1)
(-1,-2)
(1,2)
3.
Let f(x) = \(\sqrt { 1+x^{ 2 } } \) then
f(xy) = f(x).f(y)
f(xy) ≥ f(x).f(y)
f(xy) ≤ f(x).f(y)
None of these
4.
Let f and g be two functions given by
f = {(0,1), (2,0), (3,-4), (4,2), (5,7)}
g = {(0,2), (1,0), (2,4), (-4,2), (7,0)} then the range of f o g is
{0,2,3,4,5}
{–4,1,0,2,7}
{1,2,3,4,5}
{0,1,2}
5.
If f: A ⟶ B is a bijective function and if n(B) = 7, then n(A) is equal to
7
49
1
14
6.
If f(x) = 2x2 and g(x) = \(\frac{1}{3x}\), then f o g is
\(\\ \frac { 3 }{ 2x^{ 2 } } \)
\(\\ \frac { 2 }{ 3x^{ 2 } } \)
\(\\ \frac { 2 }{ 9x^{ 2 } } \)
\(\\ \frac { 1 }{ 6x^{ 2 } } \)
7.
Let A = {1, 2, 3, 4} and B = {4, 8, 9, 10}. A function f: A ⟶ B given by f = {(1, 4), (2, 8), (3, 9), (4,10)} is a
Many-one function
Identity function
One-to-one function
Into function
8.
If {(a, 8 ),(6, b)}represents an identity function, then the value of a and b are respectively
(8,6)
(8,8)
(6,8)
(6,6)
9.
Let n(A) = m and n(B) = n then the total number of non-empty relations that can be defined from A to B is
mn
nm
2mn-1
2mn
10.
If the ordered pairs (a + 2, 4) and (5, 2a + b) are equal then (a, b) is
(2,-2)
(5,1)
(2,3)
(3,-2)
11.
12.
If there are 1024 relations from a set A = {1, 2, 3, 4, 5} to a set B, then the number of elements in B is
3
2
4
8
13.
14.
A = {a, b, p}, B = {2, 3}, C = {p, q, r, s} then n[(A U C) x B] is
8
20
12
16
15.
If n(A x B) = 6 and A = {1,3} then n(B) is
1
2
3
6
1.
(d)
quadratic
2.
(b)
(2,-1)
3.
(c)
f(xy) ≤ f(x).f(y)
4.
(d)
{0,1,2}
5.
(a)
7
6.
(c)
\(\\ \frac { 2 }{ 9x^{ 2 } } \)
7.
(c)
One-to-one function
8.
(a)
(8,6)
9.
(c)
2mn-1
10.
(d)
(3,-2)
11.
(c)
12.
(b)
2
13.
(a)
14.
(c)
12
15.
(c)
3
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
