Math Problem Statement

x1 + x2 − x3 + 3x4 − x5 = −14 2x1 + x2 + x3 + x4 + x5 = 16 x1 + x2 − x3 + 2x4 − x5 = −10 2x1 + x2 + 4x3 + x4 − x5 = 18 3x1 + x2 + x3 − 2x4 + x5 = 32

Solution

To solve the system of linear equations:

  1. x1+x2x3+3x4x5=14x_1 + x_2 - x_3 + 3x_4 - x_5 = -14
  2. 2x1+x2+x3+x4+x5=162x_1 + x_2 + x_3 + x_4 + x_5 = 16
  3. x1+x2x3+2x4x5=10x_1 + x_2 - x_3 + 2x_4 - x_5 = -10
  4. 2x1+x2+4x3+x4x5=182x_1 + x_2 + 4x_3 + x_4 - x_5 = 18
  5. 3x1+x2+x32x4+x5=323x_1 + x_2 + x_3 - 2x_4 + x_5 = 32

I will solve this system using matrix methods. numpy as np

Coefficient matrix (A)

A = np.array([ [1, 1, -1, 3, -1], [2, 1, 1, 1, 1], [1, 1, -1, 2, -1], [2, 1, 4, 1, -1], [3, 1, 1, -2, 1] ])

Constants vector (B)

B = np.array([-14, 16, -10, 18, 32])

Solving the system

solution = np.linalg.solve(A, B) solutionThe solution to the system of equations is:

x1=4,x2=3,x3=4,x4=4,x5=5x_1 = 4, \quad x_2 = 3, \quad x_3 = 4, \quad x_4 = -4, \quad x_5 = 5

Would you like detailed steps for how this solution was found, or do you have additional questions?

Here are 5 related questions to deepen your understanding:

  1. How can you verify the solution to a system of equations?
  2. What are the different methods to solve a system of linear equations (e.g., substitution, elimination, matrices)?
  3. How does the determinant of a matrix affect the solvability of a system of equations?
  4. What happens if the system of equations has no solution or infinite solutions?
  5. How can you solve a larger system of linear equations efficiently?

Tip: To verify your solution, substitute the values back into the original equations and check if they satisfy all equations.

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Math Problem Analysis

Mathematical Concepts

Linear Algebra
System of Equations
Matrix Methods

Formulas

Ax = B, where A is the coefficient matrix, x is the variable vector, and B is the constants vector
Solution using matrix inverse: x = A⁻¹B
Gaussian Elimination

Theorems

Cramer's Rule
Invertible Matrix Theorem

Suitable Grade Level

Grades 11-12 or College Level