Let w a x y z dx b x y z dy c x y z dz be a differentiable 1

Last updated: 12/18/2022

Let w a x y z dx b x y z dy c x y z dz be a differentiable 1 form in R such that dw 0 Define f R R by L aux a tx ty tz x b tx ty tz y c tx ty tz z dt f x y z Show that df w