NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 Integrals in English Medium as well as हिंदी मीडियम free to download in PDF or view online. Download CBSE Apps based on Latest NCERT Solutions for 2019-20.


Class 12:Maths – गणित
Chapter 7:Integrals Exercise 7.9

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9

12 Maths Exercise 7.9 Solutions

NCERT Solutions for Class 12 Maths Exercise 7.9 in English

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 Integrals in English Medium is given below. Visit to हिंदी मीडियम or Class 12 Maths Chapter 7 main page or Top of the page.

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9




NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 in PDF
NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 in English Medium




NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 for up board
NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 for cbse board



NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 for mp board
NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 guide



7.9 class 12 Maths integration

Move to Top of the page

NCERT Solutions for Class 12 Maths Exercise 7.9 in Hindi

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 Integrals in Hindi Medium is given below. Visit to English Medium or Class 12 Maths Chapter 7 main page or Top of the page.

NCERT Solutions for Class 12 Maths Chapter 7 Exercise 7.9 in Hindi Medium




7.9 class 12
12th maths 7.9




ex. 7.9
integration 7.9 sols



7.9 sols class 12 Integrations
12 maths ex. 7.9



7.9 sols

Move to Top of the page

Questions for Practice
  1. Let A = {1, 2, 3… 12} and R be a relation in A × A defined by (a, b) R (c, d) if ad = bc ∀ (a, b), (c, d) ∈ A × A. Prove that R is an equivalence relation. Also obtain the equivalence class [(3, 4)].
  2. A trust invested some money in two type of bonds. The first bond pays 10% interest and second bond pays 12% interest. The trust received ₹ 2800 as interest. However, if trust had inter changed money in bonds, they would have got ₹ 100 less as interest using matrix method, find the amount invested in each bond by the trust.
  3. If ‘*’ is a binary operation on R defined by a * b = a + b + ab. Prove that * is commutative and associative. Find the identify element. Also show that every element of R is invertible except –1.



Important Questions
  • Two tailors A and B earn ₹ 150 and ₹ 200 per day respectively. A can stitch 6 shirts and 4 pants per day, while B can stitch 10 shirts and 4 pants per day. How many days shall each work if it is desired to produce atleast 60 shirts and 32 pants at a minimum labour cost? Solve the problem graphically.
  • Let N denote the set of all natural numbers and R be the relation on N × N defined by (a, b) R (c, d) if ad (b + c) = bc (a + d). Show that R is an equivalence relation.
  • A man has ₹ 1500 to purchase two types of shares of two different companies S1 and S2. Market price of one share of S1is ₹ 180 and S2 is ₹120. He wishes to purchase a maximum of ten shares only. If one share of type S1 gives a yield of ₹ 11 and of type S2 yields ₹ 8 then how much shares of each type must be purchased to get maximum profit? And what will be the maximum profit?