8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 8 Maths subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 8th 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.
4m2n + 9n2m + 3mn \(\div \)4mn
2.
Are the following correct?
\(\cfrac { { 10m }^{ 4 } }{ 10{ m }^{ 4 } } =0\)
3.
Multiply (m4+ n4) and (m - n)
4.
The length of a log is 3a + 4b - 2 and a piece (2a - b) is remove from it. What is the length of the remaining log?
5.
The sides of a triangle are 2x - 5y + 9, 3y + 6x -7 and -4x + y +10. Find perimeter of the triangle.
6.
Pick out the like terms from the following.
7.
Factorise :(7y2- 19y- 6)
8.
Factorise the following by taking out the common factor a3− 3a2 + a −3
9.
Factorise the following by taking out the common factor (ax + ay) + (bx + by)
10.
Expand (3m + 5)2
1.
\(=\frac{4 m^{2} n+9 n^{2} m+3 m n}{4 m n}\)
\(=m^{2-1}+\frac{9}{4} n^{2-1}+\frac{3}{4}=m+\frac{9}{4} n+\frac{3}{4}\)
2.
\(\cfrac { { 10m }^{ 4 } }{ 10{ m }^{ 4 } } =\cfrac { 10 }{ 10 } { m }^{ 4-4 }=1{ m }^{ 0 }=1\)
\(\therefore\) The given answer is not correct.
3.
(m4 + n4) (m - n)
= m4(m - n) + n4 (m - n)
= m5-m4n + mn4-n5
= m5 - n5 - mn(m3 + n3)
4.
Length of the log = 3a + 4b-2
Remaining length of the log = (3a + 4b - 2)-(2a - b)
= (3a - 2a) + [4b - (-b)]- 2
= (3 - 2) a + (4 + 1) b - 2
= a + 5b-2
5.
Perimeter of the triangle = Sum of three sides
= (2x - 5y + 9) + (3y + 6x - 7) + (-4x + y + 10)
= 2x - 5y + 9 + 3y + 6x - 7 -4x + y +10
= 2x + 6x - 4x -:-5y + 3y + Y + 9 -7 + 10
= (2 + 6 - 4) x + (-5 + 3 + 1) y + (9 -7 + 10)
= 4x - y+ 12
\(\therefore\) Perimeter of the triangle = 4x -y + 12 units.
6.
7.
| Product | Sum |
| -42 | -19 |
| (-21) x 2 | -21 + 2 |
7y2 - 19y - 6 = 7y2-21y + 2y - 6
= 7y(y - 3) + 2(y - 3)
= (y - 3)(7y + 2)
8.
a3 − 3a2 + a −3 = a2(a - 3) + 1(a - 3)
= (a - 3)(a2 + 1)
9.
(ax + ay) + (bx+ by)
= a (x + y) + b (x + y) = (x +y)(a + b)
10.
(a + b)2 = a2 + 2ab + b2
(3m+5)2 = (3m)2 + 2(3m)(5) + 52
= 32m2 + 30m + 25 = 9m2 + 30m + 25
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
