If u=x+y+z,v=x^(2)+y^(2)+z^(2),w=yz+zx+xy then show that grad u , grad v and grad w are coplana
If u=x+y+z,v=x^(2)+y^(2)+z^(2),w=yz+zx+xy then show that grad u , grad v and grad w are coplana,Finding the 8 solution of a complex equation (z^2 +1)^4 =1 - NCEA Level 3 Calculus -Excellence,For the complex number Z, the sum of all the solutions of Z^(2)+|Z|=(barZ)^(2) is equal to | 12 ,|z1z2| = |z1||z2|,Solved Write the equation in spherical coordinates. (a) x2 + | Chegg.com