# For What Values Of A Does The System Below Have Nontrivial Solutions?

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## How do you determine if a system has a nontrivial solution?

Theorem 2: A homogeneous system always has a nontrivial solution if the number of equations is less than the number of unknowns.

## What is a trivial vs nontrivial solution?

A solution or example that is not trivial. Often solutions or examples involving the number zero are considered trivial. Nonzero solutions or examples are considered nontrivial. For example the equation x + 5y = 0 has the trivial solution (0 0). Nontrivial solutions include (5 –1) and (–2 0.4).

## Does the equation have a nontrivial solution?

Answer: False. If x is not equal to the zero vector and Ax = 0 then x is a nontrivial solution.

Question 6. A is a 3×3 matrix with 3 pivot positions. Select all the statements which must be true for this A. Ax = 0 has a nontrivial solution. False
Ax = b has at least one solution for every possible b. True

## What is non-trivial solution?

The system of equation in which the determinant of the coefficient is zero is called non-trivial solution. And the system of equation in which the determinant of the coefficient matrix is not zero but the solution are x=y=z=0 is called trivial solution.

## What determinant has no solution?

If the determinant of a matrix is zero then the linear system of equations it represents has no solution. In other words the system of equations contains at least two equations that are not linearly independent.

## What is meaning of nontrivial?

Definition of nontrivial

1 : not trivial : significant important a small but nontrivial amount … engineering a power plant around the technology is a nontrivial problem.— John Fleck. 2 mathematics : having the value of at least one variable or term not equal to zero a nontrivial solution.

## Can a homogeneous system have no solution?

(f) A homogeneous system of 3 equations in 4 unknowns.

Since mthe system has no solution or infinitely many solutions. But a homogeneous system is always consistent. Thus the only possibility is infinitely many solutions.

## How can we find the solution of a nonhomogeneous system of equations without dealing with the rank of matrices?

9. How can we find the solution of a nonhomogeneous system of equations without dealing with the rank of matrices? Explanation: It is easier to find the solution of a system of equations for a non-homogeneous system using Cramer’s rule.

## What are trivial and nontrivial solutions in matrices?

10. Since the zero solution is the “obvious” solution hence it is called a trivial solution. Any solution which has at least one component non-zero (thereby making it a non-obvious solution) is termed as a “non-trivial” solution.

## Does the equation Ax 0 have a nontrivial solution if?

A solution x is non-trivial is x = 0. The homogeneous system Ax = 0 has a non-trivial solution if and only if the equation has at least one free variable (or equivalently if and only if A has a column with no pivots).

## Which statement is true about the system Ax 0 have a nontrivial solution if?

The homogeneous equation Ax = 0 has a nontrivial solution if and only if the equation has at least one free variable.

## Can a non homogeneous system have a trivial solution?

A nxn nonhomogeneous system of linear equations has a unique non-trivial solution if and only if its determinant is non-zero. If this determinant is zero then the system has either no nontrivial solutions or an infinite number of solutions.

## What is a non homogeneous system?

A homogeneous system of linear equations is one in which all of the constant terms are zero. … A nonhomogeneous system has an associated homogeneous system which you get by replacing the constant term in each equation with zero.

## What is non-trivial problem?

Often used as an understated way of saying that a problem is quite difficult or impractical or even entirely unsolvable (“Proving P=NP is nontrivial”). The preferred emphatic form is decidedly nontrivial. See trivial uninteresting interesting.

## Which variables are basic variables?

So the basic variables can be defined as the m variables which can take any value other than zero. Moreover if the variables satisfy the non-negativity condition of the LP model the basic solution created by them is called the basic feasible solution. The remaining variables are known as the non-basic variables.

## How many variables are free variables determine the solutions to the set of equations?

There are infinitely many solutions to this system of equations all using different values of the two free variables.

## What is non-basic variable?

non-basic variables are the decision variables that remain after the first step of the simplex method in linear programming. In a basic LP problem you reformulate the inequality by adding slack variables to the system of equations and then attempt to solve it.

## What happens if the determinant is zero?

When the determinant of a matrix is zero the volume of the region with sides given by its columns or rows is zero which means the matrix considered as a transformation takes the basis vectors into vectors that are linearly dependent and define 0 volume.

## How do you prove a system of equations has no solution?

A system of linear equations has no solution when the graphs are parallel. Infinite solutions. A system of linear equations has infinite solutions when the graphs are the exact same line.

## How many solutions does a homogeneous system have?

one solution

Homogeneous solution set

Every homogeneous system has at least one solution known as the zero (or trivial) solution which is obtained by assigning the value of zero to each of the variables. If the system has a non-singular matrix (det(A) ≠ 0) then it is also the only solution.

## What is nontrivial probability?

Abstract. We study the probability that two or more agents can attain common knowledge of nontrivial events when the size of the state space grows large. … Regardless of the number of agents when their cognitive capacity is sufficiently large the probability goes to one and when it is small it goes to zero.

## What does trivial task mean?

adj. 1 of little importance petty or frivolous. trivial complaints. 2 ordinary or commonplace trite.

## What is a trivial problem?

1a : of little worth or importance a trivial objection trivial problems. b : relating to or being the mathematically simplest case specifically : characterized by having all variables equal to zero a trivial solution to a linear equation. 2 : commonplace ordinary.

## How does a system have no solutions?

A system has no solutions if two equations are parallel. Let’s take a look at an example. … When two equations have the same slope but different y-axis they are parallel. Since there are no intersection points the system has no solutions.

## Why do homogeneous systems always have a solution?

Homogenous systems are linear systems in the form Ax = 0 where 0 is the 0 vector. … A homogeneous system is ALWAYS consistent since the zero solution aka the trivial solution is always a solution to that system. 2. A homogeneous system with at least one free variable has infinitely many solutions.

## What value of M gives a system with no solution?

See also what battle is considered to be the turning point in the civil war?

Then any equation of the form y = -2x + b b≠1 will create a system with no solution. Hence the values of m and b are m = -2 b ≠ 1.

## How many solutions does an inconsistent system have Mcq?

Solution: A linear system is said to be consistent if it has at least one solution and is said to be inconsistent if it has no solution. have no solution a unique solution and infinitely many solutions respectively.

## How many solutions does a non homogeneous system have?

For a homogeneous system of linear equations either (1) the system has only one solution the trivial one (2) the system has more than one solution. For a non-homogeneous system either (1) the system has a single (unique) solution (2) the system has more than one solution (3) the system has no solution at all.

## What is non homogeneous solution?

A solution yp(x) of a differential equation that contains no arbitrary constants is called a particular solution to the equation. GENERAL Solution TO A NONHOMOGENEOUS EQUATION. Let yp(x) be any particular solution to the nonhomogeneous linear differential equation.

## Is trivial solution linearly independent?

If you get only the trivial solution (all coefficients zero) the vectors are linearly independent. If you get any solution other than the trivial solution the vectors are linearly dependent.

## What is the difference between Ax B and ax 0?

Ax = 0 is a homogeneous equations and Ax = b = 0 is a nonhomogeneous equation.

## How many free variables does the equation Ax 0 have?

one free variable

Fact. The homogeneous equation Ax = 0 has a nontrivial solution if and only if the equation has at least one free variable. Example 1. Determine if the following system has a nontrivial solution.

## What kind of equation is Ax B 0?

The standard or ideal form of a linear equation with one variable is ax + b = 0 where a and b are constants x is the variable and a is not equal to 0. You can solve the equation for x to get x = − b/a. (See Solving a Linear Equation with One Variable for more information.)

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