Question

y+xy=1 y'(1) = ?

Answer 1

y+xy=1
here
y(1+x) =1
so
y= 1/(1+x)
or
now differentiate and then replace x by 1 in the result ...

Answer 2

got it thanks

Answer 3

btw i woould never have figured that out lol, factoring is so hard lol

Answer 4

no sometimes it makes the work easy..