NCERT Solutions for Class 12 Maths Chapter 7 Integrals
The topics and sub-topics included in the Integrals chapter are the following:
Section Name | Topic Name |
7 | Integrals |
7.1 | Introduction |
7.2 | Integration as an Inverse Process of Differentiation |
7.3 | Methods of Integration |
7.4 | Integrals of some Particular Functions |
7.5 | Integration by Partial Fractions |
7.6 | Integration by Parts |
7.7 | Definite Integral |
7.8 | Fundamental Theorem of Calculus |
7.9 | Evaluation of Definite Integrals by Substitution |
7.10 | Some Properties of Definite Integrals |
NCERT Solutions for Class 12 Maths Chapter 7 Integrals: Engineering aspirants and students appearing for CBSE Class 12 board exams must take the NCERT Mathematics textbooks seriously and finish them from top to bottom. They must also go through the NCERT solutions for Class 12 Maths and Class 11 Maths to have a better understanding of the various concepts. In this article, we will provide you with NCERT Solutions for Class 12 Maths Chapter 7 – Integrals which have been designed by the best teachers in India.
Class 12 Maths Chapter 7 NCERT Solutions Integrals
NCERT Solutions for Class 12 Maths Chapter 7 – Integrals contains step-by-step and detailed solutions for every question.
- Introduction
- Integration as an Inverse Process of Differentiation
- Geometrical interpretation of indefinite integral
- Some properties of indefinite integral
- Comparison between differentiation and integration
- Methods of Integration
- Integration by substitution
- Integration using trigonometric identities
- Integrals of Some Particular Functions
- Integration by Partial Fractions
- Integration by Parts
- Integral of the type
- Integrals of some more types
- Definite Integral
- Definite integral as the limit of a sum
- Fundamental Theorem of Calculus
- Area function
- First fundamental theorem of integral calculus
- Second fundamental theorem of integral calculus
- Evaluation of Definite Integrals by Substitution
- Some Properties of Definite Integrals
Integrals Ex 7.1 Class 12
Question 1.
sin 2x
Solution:
Question 2.
cos 3x
Solution:
Question 3.
Solution:
Question 4.
(ax + c)²
Solution:
Question 5.
Solution:
Find the following integrals in Exercises 6 to 20 :
Question 6.
Solution:
Question 7.
Solution:
Question 8.
Solution:
Question 9.
Solution:
Question 10.
Solution:
Question 11.
Solution:
Question 12.
Solution:
Question 13.
Solution:
Question 14.
Solution:
Question 15.
Solution:
Question 16.
Solution:
Question 17.
Solution:
Question 18.
Solution:
Question 19.
Solution:
Question 20.
Solution:
Choose the correct answer in Exercises 21 and 22.
Question 21.
The antiderivative equals
(a)
(b)
(c)
(d)
Solution:
Question 22.
If such that f(2)=0 then f(x) is
(a)
(b)
(c)
(d)
Solution:
Integrals Ex 7.2 Class 12
Integrate the functions in Exercises 1 to 37:
Question 1.
Solution:
Question 2.
Solution:
Question 3.
Solution:
Question 4.
sinx sin(cosx)
Solution:
Question 5.
sin(ax+b) cos(ax+b)
Solution:
Question 6.
Solution:
Question 7.
Solution:
Question 8.
Solution:
Question 9.
Solution:
Question 10.
Solution:
Question 11.
Solution:
Question 12.
Solution:
Question 13.
Solution:
Question 14.
Solution:
Question 15.
Solution:
Question 16.
Solution:
Question 17.
Solution:
Question 18.
Solution:
Question 19.
Solution:
Question 20.
Solution:
Question 21.
tan²(2x-3)
Solution:
∫tan²(2x-3)dx = ∫[sec²(2x-3)-1]dx = I
put 2x-3 = t
so that 2dx = dt
I = ∫sec²t dt-x+c
=
=
Question 22.
sec²(7-4x)
Solution:
Question 23.
Solution:
Question 24.
Solution:
Question 25.
Solution:
Question 26.
Solution:
Question 27.
Solution:
Question 28.
Solution:
Question 29.
cotx log sinx
Solution:
Question 30.
Solution:
Question 31.
Solution:
Question 32.
Solution:
Question 33.
Solution:
Question 34.
Solution:
Question 35.
Solution:
Question 36.
Solution:
Question 37.
Solution:
Choose the correct answer in exercises 38 and 39
Question 38.
(a) 10x – x10 + C
(b) 10x + x10 + C
(c) (10x – x10) + C
(d) log (10x + x10) + C
Solution:
Question 39.
(a) tanx + cotx + c
(b) tanx – cotx + c
(c) tanx cotx + c
(d) tanx – cot2x + c
Solution:
Integrals Ex 7.3 Class 12
Find the integrals of the functions in Exercises 1 to 22.
Question 1.
sin²(2x+5)
Solution:
Question 2.
sin3x cos4x
Solution:
Question 3.
∫cos2x cos4x cos6x dx
Solution:
Question 4.
∫sin3(2x+1)dx
Solution:
Question 5.
sin3x cos3x
Solution:
Question 6.
sinx sin2x sin3x
Solution:
Question 7.
sin 4x sin 8x
Solution:
Question 8.
Solution:
Question 9.
Solution:
Question 10.
∫sinx4 dx
Solution:
Question 11.
cos4 2x
Solution:
Question 12.
Solution:
Question 13.
Solution:
Question 14.
Solution:
Question 15.
Solution:
Question 16.
tan4x
Solution:
Question 17.
Solution:
Question 18.
Solution:
Question 19.
Solution:
Question 20.
Solution:
Question 21.
sin-1 (cos x)
Solution:
Question 22.
Solution:
Question 23.
(a) tanx+cotx+c
(b) tanx+cosecx+c
(c) -tanx+cotx+c
(d) tanx+secx+c
Solution:
Question 24.
(a) -cot(e.xx)+c
(b) tan(xex)+c
(c) tan(ex)+c
(d) cot ex+c
Solution:
Integrals Class 12 Ex 7.4
Question 1.
Solution:
Question 2.
Solution:
Question 3.
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Question 4.
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Question 5.
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Question 6.
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Question 7.
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Question 8.
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Question 9.
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Question 10.
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Question 11.
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Question 12.
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Question 13.
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Question 14.
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Question 15.
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Question 16.
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Question 17.
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Question 18.
Solution:
put 5x-2=A(1+2x+3x²)+B
⇒ 6A=5, A=, B=
Question 19.
Solution:
Question 20.
Solution:
Question 21.
Solution:
Question 22.
Solution:
Question 23.
Solution:
Question 24.
(a) xtan-1(x+1)+c
(b) (x+1)tan-1x+c
(c) tan-1(x+1)+c
(d) tan-1x+c
Solution:
Question 25.
(a)
(b)
(c)
(d)
Solution:
Integrals Class 12 Ex 7.5
Question 1.
Solution:
Question 2.
Solution:
Question 3.
Solution:
Question 4.
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Question 5.
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Question 6.
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Question 7.
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Question 8.
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Question 9.
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Question 10.
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Question 11.
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Question 12.
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Question 13.
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Question 14.
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Question 15.
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Question 16.
[Hint : multiply numerator and denominator by xn-1 and put xn = t ]
Solution:
Question 17.
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Question 18.
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Question 19.
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Question 20.
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Question 21.
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Question 22.
choose the correct answer in each of the following :
(a)
(b)
(c)
(d) log|(x-1)(x-2)|+c
Solution:
Question 23.
(a)
(b)
(c)
(d)
Solution:
Integrals Class 12 Ex 7.6
Question 1.
x sinx
Solution:
Question 2.
x sin3x
Solution:
Question 3.
Solution:
Question 4.
x logx
Solution:
Question 5.
x log2x
Solution:
Question 6.
Solution:
Question 7.
Solution:
Question 8.
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Question 9.
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Question 10.
Solution:
Question 11.
Solution:
Question 12.
x sec²x
Solution:
Question 13.
Solution:
Question 14.
x(logx)²
Solution:
Question 15.
(x²+1)logx
Solution:
Question 16.
Solution:
Question 17.
Solution:
Question 18.
Solution:
Question 19.
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Question 20.
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Question 21.
Solution:
Question 22.
Solution:
Choose the correct answer in exercise 23 and 24
Question 23.
(a)
(b)
(c)
(d)
Solution:
Question 24.
(a)
(b)
(c)
(d)
Solution:
Class 12 Integrals Ex 7.7
Integral the function in exercises 1 to 9
Question 1.
Solution:
Question 2.
Solution:
Question 3.
Solution:
Question 4.
Solution:
Question 5.
Solution:
Question 6.
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Question 7.
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Question 8.
Solution:
Question 9.
Solution:
Choose the correct answer in the Exercises 10 to 11:
Question 10.
(a)
(b)
(c)
(d)
Solution:
Question 11.
Solution:
Class 12 Integrals Ex 7.8
Question 1.
Solution:
Question 2.
Solution:
Question 3.
Solution:
Question 4.
Solution:
Question 5.
Solution:
Question 6.
Solution:
Class 12 Integrals Ex 7.9
Question 1.
Solution:
Question 2.
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Question 3.
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Question 4.
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Question 5.
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Question 6.
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Question 7.
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Question 8.
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Question 9.
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Question 10.
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Question 11.
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Question 12.
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Question 13.
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Question 14.
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Question 15.
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Question 16.
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Question 17.
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Question 18.
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Question 19.
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Question 20.
Solution:
Question 21.
(a)
(b)
(c)
(d)
Solution:
Question 22.
(a)
(b)
(c)
(d)
Solution:
Integration Class 12 Ex 7.10
Question 1:
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Question 2:
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Question 6:
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Question 7:
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Question 8:
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Question 9:
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Question 10:
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Question 11:
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Question 12:
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Question 13:
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Question 14:
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Question 15:
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Question 16:
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Question 17:
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Question 18:
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Question 19:
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Question 20:
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NCERT Solutions for Class 2 Maths Integration Class 12 Ex 7.11
NCERT Solutions for Class 12 Maths Chapter 7 Integrals Miscellaneous Exercise
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Question 28:
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Question 29:
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Question 30:
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Class 12 Maths NCERT Solutions
- Chapter 1 Relations and Functions
- Chapter 2 Inverse Trigonometric Functions
- Chapter 3 Matrices
- Chapter 4 Determinants
- Chapter 5 Continuity and Differentiability
- Chapter 6 Application of Derivatives
- Chapter 7 Integrals Ex 7.1
- Chapter 8 Application of Integrals
- Chapter 9 Differential Equations
- Chapter 10 Vector Algebra
- Chapter 11 Three Dimensional Geometry
- Chapter 12 Linear Programming
- Chapter 13 Probability Ex 13.1
Updated NCERT Solutions for Class 12 Maths for 2019 Exams.
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