Question

solve :
x-y-{x-y-(x+y)-x+y}​

Answer 1

Answer:

The given equation is written as ydx−xdy+x

xy

(x+y)dx+y

xy

(x+y)dy=0

⟹ydx−xdy+(x+y)

xy

(xdx+ydy)=0

⟹

y

2

ydx−xdy

+(

y

x

+1)

x

y(d(

2

x

2

+y

2

))=0

⟹d

2

x

2

+y

2

+

(

y

x

+1)

y

x

d(

y

x

)

=0

⟹

2

x

2

+y

2

+2tan

−1

y

x

=c

Answer 2

In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.