Solve the differential equation : `sec^2 x tan y dx -sec^2 y tan x dy = 0` given that `y = pi/3 at x = pi/4`.

Find the particular solution of the differential equation : sec^2 x tan y dx- sec^2 y tan x dy=0 , given that y = pi/4,x = pi/4 .

Find the particular solution of the differential equation : sec^2 x tan y dx- sec^2 y tan x dy=0 , given that y = pi/3,x = pi/6 .

Find the particular solution of the differential equation : sec^2 x tan y dx- sec^2 y tan x dy=0 , given that y = pi/6,x = pi/3 .

Solve the following differential equations tan y dx + sec^(2) y tan x dy = 0