Practice Definition (21.1.1) - Linear Algebra - Mathematics (Civil Engineering -1)
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Definition

Practice - Definition - 21.1.1

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Practice Questions

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Question 1 Easy

What is a system of linear equations?

💡 Hint: Think about how multiple equations can relate to each other.

Question 2 Easy

Define a coefficient matrix.

💡 Hint: What do you call the numbers in front of the variables?

4 more questions available

Interactive Quizzes

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Question 1

What is the definition of a system of linear equations?

A group of nonlinear equations
A set of equations with the same variables
An equation with one variable

💡 Hint: Remember the definition discussed in class.

Question 2

True or False: A consistent system of equations always has exactly one solution.

True
False

💡 Hint: Think about what it means to be consistent.

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Challenge Problems

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Challenge 1 Hard

A system of three equations is given. Identify its consistency: 2x + 3y + z = 6, x - y + 2z = 3, 4x + 6y + 2z = 12. Is it consistent or inconsistent?

💡 Hint: Think about how one equation can be derived from another; this implies dependence.

Challenge 2 Hard

Construct a matrix for the system defined by: 'The sum of two numbers is 10, and their difference is 2.' Solve for the two numbers using matrix methods.

💡 Hint: Matrix methods, like elimination, might help simplify solving the equations.

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