Question

differential equation

1.
(sin x + y) dx + (x - 2 cos y) dy = 0​

Answer 1

Answer:

cosx+2siny=0 ( or ) cosx=-2siny

Step-by-step explanation:

formulas sinx dx=cosx

ydx=0( because it is the y term so can't differentiate with dx )

xdy=0 (") same as above bt x and differentiate with dy so ans is 0

cosy dy= -siny