Question

public class solution
{
public int productmatrix(int rows,int columns,int matrix[][])

​

Answer 1

Explanation:

$\boxed { \huge{ \xcancel{ \tt \red{\left(\begin{array}{cccc} a _{11} & a _{12} & \ldots & a _{1 n } \\ a _{21} & a _{22} & \ldots & a _{2 n } \\ \vdots & \vdots & & \vdots \\ a _{ n 1} & a _{ n 2} & \ldots & a _{ nn }\end{array}\right) \cdot\left(\begin{array}{c} x _{1} \\ x _{2} \\ \vdots \\ x _{ n }\end{array}\right)=\left(\begin{array}{c} b _{1} \\ b _{2} \\ \vdots \\ b _{ n }\end{array}\right)}}}}$