" 23) "quad sec^(2)x tan ydx+sec^(2)y tan xdy=0

sec^(2)x tan y dx + sec^(2) y tan x dy = 0

sec^(2)x tan y dx + sec^(2) y tan x dy = 0

sec^(2)x tany dx + sec^(2)y tan x dy = dy =0

Solve the equation: sec^(2)x tan ydx+sec^(2)y tan xdy=0

Find the general solution of the differential equations sec^(2)x tan ydx+sec^(2)y tan xdy=0

The solution of different equation sec^(2)x tanydx+ sec^(2)y tan xdy= 0 AA x, y in R- (2n+1) (pi)/(2), n in I is

sec^(2)xtan^(2)ydx+sec^(2)ytan^(2)xdy=0