Recent content by ranoo

  1. R

    Exponential of nonconstant matrix

    the 2x2 matrix is A(t)=[0 1] 0 t I can't write the matrix but tha first row 0,1 and the second row 0,t
  2. R

    Exponential of nonconstant matrix

    how to compute the nonconstant matrix exponential؟ i.e. if there is a matrix A(t), how i can find exp(A(t)) ?
  3. R

    Proving Subgroup Equality in Group Theory

    thank you very much
  4. R

    How to prove the order of x,y in this case

    Please help me....
  5. R

    How to find detA if A is 4X4 matrix

    thank you
  6. R

    How to find detA if A is 4X4 matrix

    How to find detA if A is 4x4 matrix or more than 4x4.
  7. R

    Proving Subgroup Equality in Group Theory

    I don't know, like this we took in the homework.
  8. R

    How to prove the order of x,y in this case

    If x-1yx=y-1 and y-1xy=x-1 for the elements x,y of a group G , show that the order of x equal the order of y equal 4
  9. R

    Proving Subgroup Equality in Group Theory

    Homework Statement let H a subgroup of G. Prove that: 1) Ha=H iff a belong to H 2) H2=H Homework Equations The Attempt at a Solution
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