x^3y^4-9xsiny=14 I took the derivitives as (3x^2y^4)+((x^3)4y^3(y`))-(9siny+9xcosy(y`)) I solved for y` and got y` =(3x^2y^4+9siny)/x^3(4y^3)-9cosy) But this doesn't come out as correct. Any suggestions? Thanks
Follow Math Help Forum on Facebook and Google+
Hello, juventinoalex! . Yes . No We have: . . . .Then: . . . Factor: . Therefore: .
View Tag Cloud