Recent content by j3n

  1. J

    How to Solve for x in ln(x) + x = 10: Quick and Easy Method

    hello, i heard there is some way of solving for x, but i can't for the life of me remember how. please help! ln(x) + x = 10 thanks!
  2. J

    How Does Row Reduction Show that det(H) = 0 for Matrix H = Q - nI?

    PLEASE HELP! a matrix proof.. Hey! I really need help with this question if possible. Let Q be an n x n matrix with each entry = 1 Let I be the n x n identity matrix let H = Q-n*I show that det(H) = 0 (hint: think of row reducing H) Thanks a lot, j3n
  3. J

    Undergrad Best,j3n nyIs B=A^2 skew-symmetric, symmetric or neither?

    Hey, I need help with thris proof.. :) Say A is a skew-symmetric matrix. Is B=A^2 skew-symmetric, symmetric or neither. Prove your answer. I know it's symmetric, but I'm having problems with subscriptmanship. Can anyone help me out? Thanks, j3n