Chapter 7 Class 12 Integrals
Concept wise

Ex 7.6, 1 - Find integration of x sin x - Chapter 7 Class 12 - Ex 7.6

Take a fresh quiz. Then take another.
Every attempt is a new AI-adaptive Teachoo quiz with 5 questions, selected from your answers, mistakes, and progress.
Remove Ads

Transcript

Ex 7.6, 1 π‘₯ sin⁑π‘₯ ∫1β–’γ€–π‘₯ sin⁑π‘₯ γ€— 𝑑π‘₯ ∫1β–’γ€–π‘₯ sin⁑π‘₯ γ€— 𝑑π‘₯=𝒙 ∫1▒𝐬𝐒𝐧⁑𝒙 π’…π’™βˆ’βˆ«1β–’(𝒅(𝒙)/𝒅𝒙 ∫1β–’γ€–π’”π’Šπ’β‘π’™ 𝒅𝒙〗) 𝒅𝒙 = βˆ’ π‘₯ cos⁑π‘₯ βˆ’ ∫1β–’γ€–βˆ’cos⁑〖π‘₯ 𝑑π‘₯γ€— γ€— = βˆ’ π‘₯ cos⁑π‘₯+ ∫1β–’γ€–cos⁑π‘₯+𝐢〗 = βˆ’ 𝒙 𝒄𝒐𝒔⁑𝒙+π’”π’Šπ’β‘π’™+π‘ͺ " " Algebraic Trigonometric We know that ∫1▒〖𝑓(π‘₯) 𝑔⁑(π‘₯) γ€— 𝑑π‘₯=𝑓(π‘₯) ∫1▒𝑔(π‘₯) 𝑑π‘₯βˆ’βˆ«1β–’(𝑓^β€² (π‘₯) ∫1▒𝑔(π‘₯) 𝑑π‘₯) 𝑑π‘₯ Putting f(x) = x and g(x) = sin x

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.