Mathematics Part-II

Book: Mathematics Part-II

Chapter: 9. Differential Equations

Subject: Maths - Class 12th

Q. No. 4 of Exercise 9.4

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For each of the differential equations in question, find the general solution:

sec2x tan y dx + sec2y tan x dy


Dividing both sides by (tanx)(tany)




Integrating both sides,



lettan x = t &tany = u




log t = -log u + log c


Or,


log(tanx) = -log(tany) + log c



Or


(tan x) (tan y) = c


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