7th Standard Syllabus & Materials
7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - ஒன்றல்ல இரண்டல்ல Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - எங்கள் தமிழ் Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - Your Space Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - A Prayer to the Teacher Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Poem - The Listeners Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th English T1 - Prose - The Wind on Haunted Hill Important Questions And Answers Study Material - QB365 Set A
Published on: 17/06/2021
QB365 provides detailed and simple solution for every book back questions in class 7 Maths subject.It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 7th 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 x = a2 −1 and Y = 1−b2 , then find X + Y and factorize the same.
2.
Solve the following inequations and represent the solution on the number line:
k > −5, k is an integer.
3.
If a + b = 10 and ab = 18, find the value of a2 + b2.
4.
Evaluate the following, using suitable identity.
9982
5.
Using the identity (a + b)(a − b) = a2 −b2 , find the following product.
(p + 2)(p − 2)
1.
X = a2 -1, Y = 1- b2
X + Y = a2 -1 + 1 - b2
= a2- b2 = (a + b) (a - b)
X + Y = (a + b) (a - b)
2.
k = -4, -3, -2, -1, 0, 1,2, .....
3.
We know the identity,
a2 + b2 = (a + b)2 - 2ab + b2
= 102-2 x 18
= 100 - 36
= 64
4.
9982 = (1000 - 2)2
Substitute a = 1000 and b = 2 in the identity
(a-b)2 = a2- 2ab + b2
(1000 - 2)2 = 10002 - 2x 1000 x 2 + 22
= 1000000 - 4000 + 4
= 9,96,004
5.
Substitute a = p and b = 2 in the identity
(a+b) (a-b) = a2 - b2
(p + 2) (p - 2) = p2 - 22
= p2-4
7th Standard Syllabus & Materials
7th Standard
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Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
