UPSC NDA I 2010 Mathematics Paper

© examsiri.com

Question : 47 of 120

Marks: +1, -0

What is the solution of the differential equation 3ex‌tan ydx+(1+ex)‌sec‌2‌y‌d‌y=0 ?

(1+ex)‌tan‌y=c‌‌
(1+ex)3 tan y=c
(1+ex)2‌tan‌y=c
(1+ex)sec2y=c
where c is a constant of integration.

Go to Question:

Prev Question

Next Question