Solution:
a) Let and be the number of students studying in Diploma, Advance Diploma and Bachelor respectively. Total number of students are 1200. So the first equation we get is,
The management has planned to invest 24000 on invigilation costing 12 per hour. so we have in total 24000/12 = 2000 hour. Time allotted for diploma is 3 h , advance diploma is 1 h and bachelor is 2 h respectively. so the equation we get is
The management has planned to invest 13000 on venue which includes the material cost so the third equation is
So the linear system of equation for this problem is,
The Augmented matrix is,
b) Upper Triangular matrix of matrix A using matlab code,
triu(A);
c) Checking matrix is symmetric or not in matlab,
n=3;
A = [1 2 3; 2 4 5; 3 5 6];
flag = 1;
for i = 1:n
for j = 1:n
if(A(i,j) == A(j,i))
continue;
else
flag = 0;
break;
end
end
if(flag == 0)
fprintf('Not Symmetric Matrix');
break;
end
end
if(flag == 1)
fprintf('Symmetric Matrix');
end
Using Built in matlab function:
tf = issymmetric(A);
if(tf == 1) printf("symmetric");
else printf("Not Symmetric");
5. A College has 1200 students, studying in Diploma I, Advance Diploma and Bachelor are conducted,...
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