Definite Integration - JEE Main Previous Year Question with Solutions

eSaral Academic and Editorial Team
Summary
Definite Integration questions appear in JEE Main every year, contributing 2–3 problems worth 8–12 marks. The most tested concepts are King's Property, definite integrals involving the greatest integer function (GIF), and limit-of-sum problems. Practising PYQs from 2009 onward with full solutions is the fastest way to master this topic.

eSaral > JEE Main Maths PYQs > Definite Integration

JEE Main Previous Year Question of Math with Solutions are available at eSaral. Practicing JEE Main Previous Year Papers Questions of mathematics will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas. eSaral helps the students in clearing and understanding each topic in a better way. eSaral is providing complete chapter-wise notes of Class 11th and 12th both for all subjects. Besides this, eSaral also offers NCERT Solutions, Previous year questions for JEE Main and Advance, Practice questions, Test Series for JEE Main, JEE Advanced and NEET, Important questions of Physics, Chemistry, Math, and Biology and many more. Download eSaral app for free study material and video tutorials. [esquestion] $\int_{0}^{\pi}[\cot x] d x,$ where $[.]$ denotes the greatest integer function, is equal to – (1) –1 $ (2)-\frac{\pi}{2}$ (3) $\frac{\pi}{2}$ (4) 1 #tag# [AIEEE-2009] #sol# (2) [/esquestion] [esquestion] Let p(x) be a function defined on R such that p'(x) = p'(1 – x), for all x $\in$0, 1], p(0) = 1 and p(1) = 41. Then $\int_{0}^{1}$ p(x) dx equals :- (1) $\sqrt{41}$ (2) 21 (3) 41 (4) 42 #tag# [AIEEE-2010] #sol# (2) [/esquestion] [esquestion] The value of $\int_{0}^{1} \frac{8 \log (1+x)}{1+x^{2}} d x$ is :- (1) $\frac{\pi}{2} \log 2$ (2) $\log 2$ (3) $\pi \log 2$ (4) $\frac{\pi}{8} \log 2$ #tag# [AIEEE-2011] #sol# (3) [/esquestion] [esquestion] Let [.] denote the greatest integet function then the value of $\int_{0}^{1.5} \mathrm{x}\left[\mathrm{x}^{2}\right] \mathrm{dx}$ is :- ( 1)$\frac{5}{4}$ (2) 0 (3) $\frac{3}{2}$ (4) $\frac{3}{4}$ #tag# [AIEEE-2011] #sol# (4) [/esquestion] [esquestion] If $\mathrm{g}(\mathrm{x})=\int_{0}^{\mathrm{x}} \cos 4 \mathrm{t} \mathrm{dt},$ then $\mathrm{g}(\mathrm{x}+\pi)$ equals : (1) $\mathrm{g}(\mathrm{X}) \cdot \mathrm{g}(\pi)$ (2) $\frac{\mathrm{g}(\mathrm{x})}{\mathrm{g}(\pi)}$ (3) $\mathrm{g}(\mathrm{x})+\mathrm{g}(\pi)$ (4) $\mathrm{g}(\mathrm{x})-\mathrm{g}(\pi)$ #tag# [AIEEE-2012] #sol# (3,4) [/esquestion] [esquestion] Statement-I : The value of the integral $\int_{\pi / 6}^{\pi / 3} \frac{\mathrm{dx}}{1+\sqrt{\tan \mathrm{x}}}$ is equal to $\frac{\pi}{6}$ Statement-II : $\int_{a}^{b} f(x) d x-\int_{a}^{b} f(a+b-x) d x$ (1) Statement-I is true, Statement-II is true; Statement-II is a correct explanation for Statement- I. (2) Statement-I is true, Statement-II is true; Statement-II is not a correct explanation for Statement-I. (3) Statement-I is true, Statement-II is false. (4) Statement-I is false, Statement-II is true. #tag# [JEE-MAIN-2013] #sol# (4) [/esquestion] [esquestion] The integral $\int_{0}^{\pi} \sqrt{1+4 \sin ^{2} \frac{x}{2}-4 \sin \frac{x}{2}} d x$ equals : (1) $\pi-4$ (2) $\frac{2 \pi}{3}-4-4 \sqrt{3}$ (3) $4 \sqrt{3}-4$ (4) $4 \sqrt{3}-4-\frac{\pi}{3}$ #tag# [JEE-MAIN-2014] #sol# (4) [/esquestion] [esquestion] The integral $\int_{2}^{4} \frac{\log x^{2}}{\log x^{2}+\log \left(36-12 x+x^{2}\right)} d x$ is equal to : (1) 1 (2) 6 (3) 2 (4) 4 #tag# [JEE-MAIN-2015] #sol# (1) [/esquestion] [esquestion] The integral $\int_{\frac{\pi}{4}}^{\frac{3 \pi}{4}} \frac{\mathrm{dx}}{1+\cos x}$ is equal to :- (1) –1 (2) –2 (3) 2 (4) 4 #tag# [JEE-MAIN-2017] #sol# (3) [/esquestion] [esquestion] The value of $\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \frac{\sin ^{2} x}{1+2^{x}} d x$ is : ( 1)$\frac{\pi}{2}$ (2) $4 \pi$ (3) $\frac{\pi}{4}$ (4) $\frac{\pi}{8}$ #tag# [JEE-MAIN-2018] #sol# (3) [/esquestion]













For offline Definite Integration practice, use the JEE Mains PYQ chapter-wise PDF download page to access other chapters as well.
Once Definite Integration feels comfortable, benchmark yourself against a real paper using our JEE Main exam papers.
Frequently Asked Questions
Is definite integration hard for JEE Main compared to JEE Advanced?
Definite integration in JEE Main is significantly more formula-driven and property-based. JEE Advanced questions demand deeper insight — such as integral inequalities and parameter-based problems. For JEE Main, mastering the seven standard properties and GIF splitting technique is sufficient for full marks on this topic.
Which property of definite integrals is most important for JEE Main?
King's Property — $\int_a^b f(x)\,dx = \int_a^b f(a+b-x)\,dx$ — is the single most important property for JEE Main. It appears directly or indirectly in roughly 50–60% of definite integration questions asked in the exam, often allowing you to solve the problem in one or two steps.
How many questions on definite integration appear in JEE Main each year?
JEE Main typically includes 2–3 questions on definite integration per session, contributing 8–12 marks. Based on analysis of NTA papers from 2009 to 2023, at least one question every year is directly solvable using King's Property without evaluating the integral in full.
Can I score full marks in the integration section of JEE Main without studying indefinite integration?
No. Definite integration relies on evaluating antiderivatives, so indefinite integration techniques — substitution, integration by parts, partial fractions — are prerequisites. However, for many JEE Main questions, smart property application means you never need to find the antiderivative at all.
How do I solve definite integrals involving the greatest integer function in JEE Main?
Identify all points in $[a, b]$ where the expression inside $[\,.\,]$ takes an integer value. Split the integral at each of those points. Within each sub-interval, $[f(x)]$ is constant, so the integral reduces to a simple polynomial or trigonometric integral. Always list breakpoints before computing — this prevents sign errors.
What is the King's Rule in definite integration?
King's Rule states that $\int_a^b f(x)\,dx = \int_a^b f(a+b-x)\,dx$. In practice, you substitute $x \to a+b-x$ in the integrand. When the original integral and its transformed version are added, the integrand simplifies to a constant, making evaluation straightforward. It is especially powerful for trigonometric and logarithmic integrals.
Where can I find more JEE Main Maths previous year questions with solutions?
eSaral provides chapter-wise JEE Main PYQs with full solutions across all Mathematics topics, taught by IIT Bombay faculty. You can also access the aligned theory through NCERT Solutions for Class 12 Maths and NCERT Solutions for Class 11 Maths on eSaral.

Team eSaral
eSaral Academic and Editorial Team
Team eSaral is the collective author profile for educational content created by eSaral’s teachers and academic contributors. The team draws on expertise from IIT graduates, doctors, experienced educators and subject specialists to develop resources for JEE, NEET and school students. Our articles aim to explain concepts clearly and help students study with confidence.
Related Posts

BITSAT 2027: Registration Date, Exam Date, Syllabus, Eligibility, Pattern & Fees
BITSAT 2027 exam dates, registration timeline, eligibility criteria, exam pattern, marking scheme, syllabus and fees in one page.

BITSAT Previous Year Question Paper PDF (2017-2026)
Download BITSAT previous year question papers PDF from 2017 to 2026,session-wise. Memory-based papers,exam pattern, paper analysis and how to practise

CBSE Class 10 Date Sheet 2027: Expected Exam Dates, Release Date, Admit Card & Result Timeline
CBSE Class 10 date sheet 2027 is awaited. See the expected exam dates, release window, how to download the PDF, admit card and result timelines.

NCERT Physics Class 10 Book PDF in Hindi 2026-27 – भौतिक विज्ञान के 4 अध्याय (Free Download)
NCERT Physics Class 10 book PDF in Hindi 2026-27: download all 4 chapters (अध्याय 9–12) free, with topics and important formulas.

NCERT Biology Class 9 Book Anveshan PDF in Hindi - जीव विज्ञान कक्षा 9 पुस्तक अन्वेषण PDF
Download NCERT Biology Class 9 book PDF in Hindi chapterwise for 2026-27: Cell, Tissues, Reproduction and Diversity. Free PDFs.
-1.webp?2026-10-02T10%3A55%3A05.572Z)
Essay On Artificial Intelligence in English (100,150, 200, 250, 300, 500 Words)
This is in contrast to the natural intelligence of humans. With Artificial Intelligence, machines can perform

Essay on 78th India Independence Day in English for Student (100, 150, 200, 250, 300, 500 Words)
Read the best essays on India's Independence Day in English. Short & long essays (100, 150, 200, 250, 300, 500 words) perfect for school exams
NCERT Class 11 English Snapshots book - Free PDF download- Esaral
Download NCERT Class 11 English Snapshots book PDF for free. Get all 8 chapters, chapter-wise. Start your prep today!
NCERT Class 10 biology book pdf - Free PDF Download - eSaral
NCERT Class 10 Biology book PDF 2026-27: all 5 chapters (Life Processes to Our Environment) in English & Hindi, with CBSE syllabus, marks & practical

Essay on Global Warming in English (100,150, 200, 250, 300, 500 Words)
Global warming means the Earth is getting hotter. This happens because of things like pollution from cars and factories.
