Let f: -8 be a scalar field, v:r>r° be a vector filed and let aer' be a constant vector fr represents the position vector xi +zk, then whch one of the tollowing

Let f: -8 be a scalar field, v:R>R° be a vector filed and let aeR' be a constant vector Fr represents the position vector xi +zk, then whch one of the tollowing is FALSE? A) cunf v)-gradf) xv+f cur{y) (5) divgrad(f) -| C)cuf(āxr)=2| a (0)divT-0 for T-0 F