Solving task on-line

Solution of linear equations by Cramer online

Using Cramer's rule to find the solution of equations.
The meaning of the method of Cramer: find the determinant D_k, obtained from the replacement k-th column to a column of free terms and divide it by the chief determinant D. x^k = D_k / D

Instructions for using the Cramer Method

Select the number of variables, click Next . The resulting solution is stored in the file MS Word. For editing, you can use formul's editor Microsoft Equation.

Select the number of variables

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A bit of theory: the Cramer's rule

This system of equations will have a unique solution only if the determinant composed of coefficients of X _{1 - n} is not equal to zero. Denote this determinant sign - d. If this determinant is not equal to zero, then decide on. Then each X _i = d _i / d, where d _i - is a determinant composed of coefficients of X _{1 - n} , only the values of the coefficients in i - th column replaced by the values of the equal sign in the system of equations, and d - is the main determinant.

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