Would you please solve these three questions correctly By us

Solution

1)a)A=[1,2,3,4;1,2,3,4;1,2,3,4]

A(2,1)=5;

b)X=0:0.1:10 %vector creation;

2)

function perimeter
x=input(\'enter width\');
y=input(\'enter Length\');
z=2*(x+y);
fprintf(\'perimeter is %d\',z);

3)

x=-3:0.01:3;
y=(5.5.^(-0.3*x)).*sin(6*x);
plot(x,y,\'-r\');
xlabel(\'x\'),ylabel(\'y\');