Question

y= 2x dy/dx + y² (dy/dx)³

Answer 1

Answer:

Correct options are B) and C)

Given, (x+y)(dx−dy)=dx+dy.

(x+y+1)dy=(x+y−1)dx

dx

dy

=

x+y+1

x+y−1

.

⇒

x+y

dx+dy

=dx−dy.

Integrating we get,

log(x+y)=x−y+c