Math

posted by .

Suppose C and D are 2 × 2 matrices with det(C) = −3 and det(D) = 2. Find the determinant of the matrices 8C^3D2 and 5 C^-1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math (matrices)

    No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A|0] [B|A] (that is a 4x4 matrix represented as 4 2x2 matrices) …
  2. algebra-det.

    a) Suppose that B is an n ¡Á n matrix, and k is a scalar. Give a formula for det (kB) in terms of det B . b) Show that your formula from (a) is true for all n and for any k. det (kB) = k^n det B This is because the determinant is …
  3. Math: determinants

    If det(A)=-7 A= | a b c | | d e f | | g h i | Find det(2A^-1), det((2A)^-1). Find | a g d | | b h e | | c i f |
  4. matrices

    Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m × n matrix, and that V is a p × q matrix. In order for U•V to make sense, what must be true of the dimensions of these matrices?
  5. Algebra

    A is a 2 by 2 matrix. Given that A=(5 1) (1 5) , what is the value of det(A)?
  6. Linear Algebra

    Suppose C and D and 5x5 matrices and det(C)=5, det(D)=6. Compute the determinant of the matrix 3C^T (4CD)^-1 C^2. Justify your answer by stating explicitly which calculation rules for the determinant you use.
  7. math-urgent

    show that if A= A inverse, then det(A) = +/- 1 if A(transpose) = A(inverse), what is det(A)?
  8. math

    Is the only way to check if a set of vectors are linearly indep. is if the det does not equal 0?
  9. Math--Matrix

    Q1. Suppose A= ( -1 2 -3 -4 3 2 1 3 1 ), then the determinant of this matrix is?
  10. Linear Algebra

    Hi, I really need help with these True/False questions: (a) If three vectors in R^3 are orthonormal then they form a basis in R^3. (b) If Q is square orthogonal matrix such that Q^2018 = I then Q^2017 = Q^T. (c) If B is square orthogonal …

More Similar Questions