NCERT Solutions For Class 12 Maths Chapter 7 Integrals Ex 7.8
Here, Below you all know about NCERT Solutions for Class 12 Maths Chapter 7 Integrals Ex 7.8 Question Answer. I know many of you confuse about finding Chapter 7 Integrals Ex 7.8 Of Class 12 NCERT Solutions. So, Read the full post below and get your solutions.
Textbook | NCERT |
Board | CBSE |
Category | NCERT Solutions |
Class | Class 12 |
Subject | Maths |
Chapter | Chapter 7 |
Exercise | Class 12 Maths Chapter 7 Integrals Exercise 7.8 |
Number of Questions Solved | 6 |

NCERT Solutions for Class 12 Maths Chapter 7 Integrals Ex 7.8
NCERT TEXTBOOK EXERCISES
Ex 7.8 Class 12 Maths Question 1.
$\int _{ a }^{ b }{ x\quad dx }$
Solution:
on comparing
$\int { a }^{ b }{ x\quad dx } \quad with\quad \int { a }^{ b }{ f(x)dx }$
we have

Ex 7.8 Class 12 Maths Question 2.
$\int _{ 0 }^{ 5 }{ (x+1)dx }$
Solution:
on comparing
$\int { 0 }^{ 5 }{ (x+1)dx } \quad with\quad \int { 0 }^{ 5 }{ f(x)dx }$
we have f(x) = x+1, a = 0, b = 5
and nh = b-a = 5-0 = 5

Ex 7.8 Class 12 Maths Question 3.
$\int _{ 2 }^{ 3 }{ { x }^{ 2 } } dx$
Solution:
compare
$\int { 2 }^{ 3 }{ { x }^{ 2 } } dx\quad with\quad \int { a }^{ b }{ f({ x }) } dx$
we have

Ex 7.8 Class 12 Maths Question 4.
$\int _{ 1 }^{ 4 }{ ({ x }^{ 2 }-x) } dx$
Solution:
compare
$\int { 1 }^{ 4 }{ ({ x }^{ 2 }-x) } dx\quad with\quad \int { a }^{ b }{ f({ x }) } dx$
we have f(x) = x²-x and a = 1, b = 4

Ex 7.8 Class 12 Maths Question 5.
$\int _{ -1 }^{ 1 }{ { e }^{ x } } dx\quad$
Solution:
compare
$\int { -1 }^{ 1 }{ { e }^{ x } } dx\quad with\quad \int { a }^{ b }{ f({ x }) } dx$
we have

Ex 7.8 Class 12 Maths Question 6.
$\int _{ 0 }^{ 4 }{ { (x+e }^{ 2x }) } dx\quad$
Solution:
let f(x) = x + e2x,
a = 0, b = 4
and nh = b – a = 4 – 0 = 4
NCERT Solutions for Class 12 Maths Chapter 7 Integrals Exercise 7.8 PDF
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Other Chapter of Class 12 Maths Chapter 7 Integrals
- Class 12 Maths Chapter 7 Integrals Ex 7.1
- Class 12 Maths Chapter 7 Integrals Ex 7.2
- Class 12 Maths Chapter 7 Integrals Ex 7.3
- Class 12 Maths Chapter 7 Integrals Ex 7.4
- Class 12 Maths Chapter 7 Integrals Ex 7.5
- Class 12 Maths Chapter 7 Integrals Ex 7.6
- Class 12 Maths Chapter 7 Integrals Ex 7.7
- Class 12 Maths Chapter 7 Integrals Ex 7.8
- Class 12 Maths Chapter 7 Integrals Ex 7.9
- Class 12 Maths Chapter 7 Integrals Ex 7.10
- Class 12 Maths Chapter 7 Integrals Ex 7.11