Recent content by Keesjan

  1. K

    X and y lin independent in Rn A=xy^T+yx^T

    What do you mean with <u,v>=0 for all v in S Maby i don't under stand the notation but could you explain a little more? Thanks
  2. K

    X and y lin independent in Rn A=xy^T+yx^T

    Homework Statement Well as the title describes, x and y linear independent in R^n S is a subspace in Rn spanned by x,y i.e S= span(x,y) define the matrix A as A=xy^T+yx^T This is actually a 3 part question 1 show that A is symmetrical 2 show that N(A)=S(Perpendicular) 3 show that the...
  3. K

    Convergence and Limit of a Converging Sequence

    Homework Statement a1=0 an+1=Sqrt(1+2an) n=1,2,3... show that an converges and find the limit Homework Equations The Attempt at a Solution I have seen something like this before but i can't remember how to solve this. well i think i get that it becomes...
  4. K

    How Do You Calculate Omega for a Mass Between Two Different Springs?

    Homework Statement Hey The part of the question that i am not all the sure about is Newtons second law. and the Omega the Situation is as followed ]/\/\/k1\/\/\[m]/\/\/k2/\/\[ There are 2 springs k1,k2 and a mass in between.Homework Equations F=ma and F=-kx x=Asin(omega(t)+theta) The...
  5. K

    High School Are there any good video lectures for learning Calculus I?

    hey This will be my first post but i have been on this site a few times. I have done a lot of self study for algebra and calc and i found two sites that helped the most. 1 http://www.math.armstrong.edu/faculty/hollis/ 2 http://www.khanacademy.org/ hoop this helps some one...