9th Standard Syllabus & Materials
9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роХрогро┐родроорпН роЖропродрпНродрпКро▓рпИ ро╡роЯро┐ро╡ро┐ропро▓рпН,роорпБроХрпНроХрпЛрогро╡ро┐ропро▓рпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Maths Coordinate Geometry,Trigonometry Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роХрогро┐родроорпН роЕро│ро╡ро┐ропро▓рпН,рокрпБро│рпНро│ро┐ропро┐ропро▓рпН&роиро┐роХро┤рпНродроХро╡рпБ роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Maths Mensuration,Statistics&Probability Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роЪрпЖро╡рпНро╡ро┐ропро▓рпН роЙро▓роХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Classical World Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - родрпКроЯроХрпНроХроХро╛ро▓родрпН родрооро┐ро┤рпНроЪрпН роЪроорпВроХроорпБроорпН рокрогрпНрокро╛роЯрпБроорпНроорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Early Tamil Society and Culture Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - родрпКро┤ро┐ро▒рпНрокрпБро░роЯрпНроЪро┐ роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Industrial Revolution Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роиро╡рпАрой ропрпБроХродрпНродро┐ройрпН родрпКроЯроХрпНроХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Beginning of the Modern AgeImportant 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
Published on: 22/09/2018
Creative Questions
Download Tamil Nadu 9th 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.
if a polynominal p(x) is divided by (ax+b), then the reminder is _______________________
\(p\left( \frac { b }{ a } \right) \)
\(p\left( -\frac { b }{ a } \right) \)
\(p\left( \frac { a }{ b } \right) \)
\(p\left( -\frac { a }{ b } \right) \)
2.
Which of the following is a monomial?
\({ 4x }^{ 2 }\)
\(a+b\)
\(a+b+c\)
\(a+b+c+d\)
3.
Which of the following is a formula to find the sum of interior angles of a quadrilateral of n-sides?
\(\frac { n }{ 2 } \) \(\times\) 180
\(\left( \frac { n+1 }{ 2 } \right) \)1800
\(\left( \frac { n-1 }{ 2 } \right) \)180o
(n-2)180o
4.
The angle sum of a convex polygon with number of sides 7 is ________
900°
1080°
1444°
720°
5.
The shade region with adjoint diagram represents ___________
A - B
B - A
A'
B'
6.
Sets having the same number of elements are called ___________
overlapping sets
disjoints sets
equivalent sets
equal sets
7.
A = {set of odd natural numbers}, B = {set of even natural numbers}, then A and B are ___________
equal set
equivalent sets
overlapping sets
disjoint sets
8.
Which of the following are irrational numbers?
\(\sqrt { 2+\sqrt { 3 } } \)
\(\sqrt [ 3 ]{ 5+\sqrt { 7 } } \)
\(\sqrt { 8-\sqrt [ 3 ]{ 8 } } \)
\(\sqrt { 4+\sqrt { 25 } } \)
(ii), (iii) and (iv)
(i), (ii) and (iv)
(i), (ii) and (iii)
(i), (iii) and (iv)
9.
If a number has a non-terminating and non-recurring decimal expansion, then it is______________ .
a rational number
a natural number
an irrational number
an integer
10.
On which quadrant does the point (- 4, 3) lie?
I
II
III
IV
11.
Represent \(-\frac { 2 }{ 11 } ,-\frac { 5 }{ 11 } and-\frac { 9 }{ 11 } \)on the number line.
12.
Find the type of triangle formed by (-1, -1), (1, 1) and (\(-\sqrt{13},\sqrt{13}\))
13.
Show that the given points (1, 1), (5, 4), (-2, 5) are the vertices of an isosceles right angled triangle.
14.
The rational number equivalent to \(\frac { 5 }{ 9 } \) such that its numerator is 25 is____________ .
15.
All angles of a rectangle are equal and are _______
16.
If A and B are two finite sets such that n(A - B) = 30, n(A UB) = 180, then n(B) is ___________
17.
A is a proper subset of B, then A U B = ______________
18.
The abscissa of every point on y-axis is______________
19.
What must added to \({ x }^{ 4 }-3x^{ 2 }+2x+6\quad to\quad get\quad { x }^{ 4 }-2x^{ 3 }-x+8?\)
20.
The angles of quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral.
21.
In a class there are 40 students. 26 have opted for Mathematics and 24 have opted for Science. How many student have opted for Mathematics and Science.
22.
Given that A = {1,3,5,7} B = {1,2,4,6,8}. Find
(i) AΔB and
(ii) BΔA
23.
Simplify 3y(2y - 7) - 3 (y - 4) - 63 and evaluate when y = -2.
24.
Twice the area of a right angled triangle 15x2 + 19x + 6 sq. units. If its altitude is 5x + 3 units, find its base in terms of x.
25.
Without actual division classify the decimal expansion of the following numbers as terminating or non-terminating and recurring.
\(13\over 150\)
26.
Without actual division classify the decimal expansion of the following numbers as terminating or non-terminating and recurring.
\(7\over 16\)
27.
Let U= {x : -3 : < x < 4} A = {-1,2,3} B = {0,1,2,3} C = {-3;-2,-1,0,1,2}. Find (i) A' UB' (ii) (A ∩ B)' (iii) (A тЛВ C)'
28.
In a class of 50 students, each of the students passed either in mathematics or in science or in both. 10 students passed in both and 28 passed in science. Find how many students passed in mathematics only
1.
(b)
\(p\left( -\frac { b }{ a } \right) \)
2.
(a)
\({ 4x }^{ 2 }\)
3.
(d)
(n-2)180o
4.
(a)
900°
5.
(c)
A'
6.
(c)
equivalent sets
7.
(d)
disjoint sets
8.
(d)
(i), (iii) and (iv)
9.
(c)
an irrational number
10.
(b)
II
11.
To represent \(-\frac { 2 }{ 11 } ,-\frac { 5 }{ 11 } and-\frac { 9 }{ 11 } \)on the number line we make 11 markings each being equal distance \(\frac { 1 }{ 11 } \) on the left of 0.
The point A represents \(\left( -\frac { 2 }{ 11 } \right) \) , the point B represents\(\left( -\frac { 2 }{ 11 } \right) \) and the point C represents \(\left( -\frac { 9 }{ 11 } \right) \)
12.
Let the point A (-1, -1), (1, 1) and (\(-\sqrt{13},\sqrt{13}\))
Distance = \(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
AB =\(\sqrt{(1+1)^2+(1+1)^2}\)
\(\sqrt{2^2+2^2}=\sqrt{4+4}=\sqrt{8}\)
BC =\(\sqrt{(-\sqrt{3}+1)^2+(\sqrt{3}-1)^2}\)
\(\sqrt{(\sqrt{3}+1)^2+(\sqrt{3}-1)^2}\)
\(\sqrt{3+1+2\sqrt{3}+3+1-2\sqrt{3}}\)
\(\sqrt{3+1+3+1}=\sqrt{8}\)
AC =\(\sqrt{(-\sqrt{3}+1)^2+(\sqrt{3}+1)^2}\)
\(=\sqrt{3+1-2\sqrt{3}+3+1+2\sqrt{3}}\)
\(=\sqrt{4+4}=\sqrt{8}\)
AB= BC=AC= \(\sqrt{8}\)
\(\therefore\)ABC is an equilateral triangle.
13.
Let A(1, 1),B(5, 4) and C(-2, 5)
Distance =\(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
AB =\(\sqrt{(5-1)^2+(4-1)^2}\)
\(=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5\)
BC =\(\sqrt{(-2-5)^2+(5-4)^2}\)
\(=\sqrt{(-7)^2+1^2}=\sqrt{49+1}=\sqrt{50}\)
AC =\(\sqrt{(-2-1)^2+(5-1)^2}\)
\(=\sqrt{(-3)^2+4^2}=\sqrt{9+16}=\sqrt{25}=5\)
AB = 5, AC = 5,
\(\therefore\) ABC is an isosceles triangle .................(1)
BC2 = AB2 + AC2
50 = 25 + 25\(\Rightarrow\) 50 = 50
\(\therefore\) \(\angle\)A = 90° ...................(2)
From (1) and (2) we get ABC is an isosceles right angle triangle.
14.
( )
\(\frac { 25 }{ 45 } \)
15.
( )
right angles
16.
( )
150
17.
( )
B
18.
( )
0
19.
Let A be the required number to be added.
(x4 - 3x2 + 2x + 6 ) + A = x4 - 2x3 - x + 8
\(\therefore\) A = x4- 2x3 - x + 8 - (x4 - 3x2 + 2x + 6)
= x4 - 2x3 - x + 8 - x4 + 3x2 - 2x - 6
= -2x3 + 3x2 - 3x + 2
Hence -2x3 + 3x2 - 3x + 2 must be added.
20.
Let the angles of the quadrilateral be 3x, 5x, 9x and 13x.
Sum of all the angles of quadrilateral = 360°.
3x + 5x + 9x + 13x = 360°
30x = 360°
x = \(\frac { { 360 }^{ 0 } }{ 30 } \)
=120
3x =3 \(\times\) 12 = 36°
5x = 5 \(\times\) 12 = 60°
9x = 9 \(\times\) 12 = 108°
13x = 13 \(\times\) 12 = 156°
The required angles of quadrilateral are 36°, 60° 108° and 156°.
21.
Let M be the set of students opting for Mathematics.
Let S be the set of students opting for Science.
n (M U S) = 40, n (M) = 26, n (S) = 24
n (M U S) = n (M) + n (S) - n (M n S)
40 = 26 + 24 - n (M n S)
n (M n S) = 26 + 24 - 40
= 50 - 40 = 10
∴ Number of students opted for Mathematics and Science = 10
22.
(i) A = {1,3,5,7} ; B = {1,2,4,6,8}
A-B = {1,3,:5,7} - {1,2,4,6,8}
= {3,5,7}
B -A = {1,2,4,6,S} - {1,3,5,7}
= {2,4,6,8}
AΔB = (A - B)U(B-A)
= {3,5,7} U {2,4,6,8}
= {2,3,4,5,6,7,8}.
(ii) BM = (B-A) U (A-B)
= {2,4,6,8} u {3,5,7}
= {2,3,4,516,7,S}
23.
x2 - 3x + 2.
The value is 0
24.
(3x + 2) units
25.
\({13\over 150} = {13\over 2\times 3\times 5^2}\)
Since it is not in the form of \({P\over 2^m\times 5^n}\)
\(\therefore {13\over 150}\) has non-terminating and recurring decimal expansion.
26.
\({7\over 16}={7\over 2^4}={7\over 2^4\times 5^6}\)
\(\therefore {7\over 16}\) has a terminating decimal expansion.
27.
(i) {-3,-2,-1,0,1,4} (ii) {-3,-2,-1,0,1,4} (iii) {-3,-2,0,1,3,4}
28.
22
9th Standard Syllabus & Materials
9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - рокрогрпНроЯрпИроп роиро╛роХро░ро┐роХроЩрпНроХро│рпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Ancient . Civilisations Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - рокрпБро░роЯрпНроЪро┐роХро│ро┐ройрпН роХро╛ро▓роорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Age of Revolutions Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роЗроЯрпИроХрпНроХро╛ро▓ роЗроирпНродро┐ропро╛ро╡ро┐ро▓рпН роЕро░роЪрпБроорпН роЪроорпВроХроорпБроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - State and Society in Medieval India Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роЖроЪро┐роп роЖрокрпНрокро┐ро░ро┐роХрпНроХ роиро╛роЯрпБроХро│ро┐ро▓рпН роХро╛ро▓ройро┐ропро╛родро┐роХрпНроХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Colonialism in Asia and Africa Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
