find the derivative f(x , y , z) = x^3 - xy^2 -z at Po (1,1,0) in the direction of → → → → a = 2i - 3j + 6k
Last edited by m777; Oct 28th 2007 at 02:29 AM.
Follow Math Help Forum on Facebook and Google+
Originally Posted by m777 find the derivative f(x , y , z) = x^3 - xy^2 -z at Po (1,1,0) in the derivative of → → → → a = 2i - 3j + 6k $\displaystyle \nabla f (x,y,z) = \left< f_x,f_y,f_z\right> = \left< 3x^2 - y^2, 2xy, -1 \right>$ i don't understand what you mean by "in the derivative of $\displaystyle a = 2 \bold{i} - 3 \bold{j} + 6 \bold{k}$"
View Tag Cloud