Question

Solution of the differential equation sec^2 x tan⁡y dx + sec^2 y tan⁡x dy=0 is _______

a) (sec x. sec y)=k

b) (sec x .tany)=k

c) (tan x. tany)=k

d) (sec x .tan x)+(sec y .tan y)=k​

Answer 1

Answer:

correct option is. c) (tan x. tany)=k