lesgo

This page lists questions and answers that were posted by visitors named lesgo.

Questions

The following questions were asked by visitors named lesgo.

Let k, h be unknown constants and consider the linear system: x - 4y + 7z = -7 7x - 4y +8z = 3 17x - 20y + hz = k This system has a unique solution whenever h does not equal ???

[3 -6 -3] [x] [ x 2 1] -6 -2 3 -1 -3 -2 0 2 to clarify, the [ x 2 1] is a 1*3.......the A matrix is 3*3....and what i think is b, the x -1 2 is 3*1. x = ??

If a 4×4 matrix A with rows v1, v2, v3, and v4 has determinant detA=7, row 1 [ v1] row 2 [ 4v2 + 9v4 ] row 3 [ v3 ] row 4 [3v2 + 2v4 ] what is the det of this matrix?

Answers

The following answers were posted by visitors named lesgo.

the format got jumbled [x 2 1] [3 -6 -3] [x] -6 -2 3 -1 -3 2 0 2