Hello Kriti,
There was a mistake from our end, please check the answer now https://www.teachoo.com/5052/1287/Ex-7.6--7---Integrate-x-sin-1-x---Chapter-7-Class-12/category/Integration-by-parts/
Thank you for pointing out mistakes and making teachoo better.
Written on Sept. 29, 2017, 10:53 a.m.