Recent content by tarwe

  1. T

    Unit normal to surface φ(x,y,z) = x³ + 2xy + yz³ at P=(1,1,2)

    thank you! that was a typo, meant 269, was thinking in binary :/
  2. T

    Unit normal to surface φ(x,y,z) = x³ + 2xy + yz³ at P=(1,1,2)

    Homework Statement If \phi(x,y,z) = x3 + 2xy +yz3 find \nabla\phi at the point P=(1,1,2) and direction of the unit normal to the surface \phi(x,y,z) = 11 at P. Homework Equations The Attempt at a Solution Worked out \nabla\phi to be 5i + 10j + 12k Got |\nabla\phi|= √256 so the...
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