Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please Solve R.D.Sharma Class 12 Chapter 18 Indefinite Integrals Exercise 18.25 Question 1 Maths Textbook Solution.

Please Solve R.D.Sharma Class 12 Chapter 18 Indefinite Integrals Exercise 18.25 Question 1 Maths Textbook Solution.

Answers (1)

Answer: x \sin x+\cos x+c

Hint: \int u v d x=u \int v d x-\int \frac{d}{d x} u \int v d x

Given: I=\int x \cos x d x

Solution:Using integration by parts

I=x \int \cos x d x-\int \frac{d}{d x} x \int \cos x d x

We have,\int \sin x d x=-\cos x, \int \cos x d x=\sin x

\begin{aligned} &=x \times \sin x-\int \sin x d x \\ &=x \sin x+\cos x+c \end{aligned}

Posted by

infoexpert21

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Board exams twice a year from 2025, no plan for semesters: MoE
anam-khan

CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
anam-khan

CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years

Latest Question