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a company manufactures and sells five products. Costs per unit, selling price, and hourly labor requirements per unit produced are given. If the objective is to maximum total profit, formulate a linear programming model having the following constraints at least 20 units of product A and at least 10 units of products B must be produced sufficient raw material are not available for total production in excess 75 units the number of units produced of products C and E must be equal combined production of A and B should be no more than 50 percent of combined production C,D and E the amount produced of C must be atleast that of A and labour availability in departments 1 and 2 equal 120 and 150 hours respectively


a company manufactures and sells five products. Costs per unit, selling price, and hourly labor requirements per unit produced are given. If the objective is to maximum total profit, formulate a linear programming model having the following constraints at least 20 units of product A and at least 10 units of products B must be produced sufficient raw material are not available for total production in excess 75 units the number of units produced of products C and E must be equal combined production of A and B should be no more than 50 percent of combined production C,D and E the amount produced of C must be atleast that of A and labour availability in departments 1 and 2 equal 120 and 150 hours respectively


Change Q= x² + 2y² + 2z² - 2xy - 2yz + zx into real canonical form and find its rank and signature.


  1. For what values of h the vectors



⟶ [ 1 ⟶ [ -1 ⟶ [ 5

u1 = -3 u2 = 9 u3 = -7

-2 ] -6 ] h ]


are linearly independent? (Show all working)


Find all Eigen values and corresponding Eigen vectors for the matrix A=

0 0 3

2 5 0

2 3 0



Consider the set V = R 2 . For (x1, y1),(x2, y2) ∈ R 2 and c ∈ R, define the following operations:

I. (x1, y1) + (x2, y2) = (0, y1 + y2)

II. c(x1, y1) = (0, cy1)

Is the subset a vector of R2. If not prove the axioms that makes it false.Also prove those axioms that are true.


What is grapichal method of 2x-3y=7; 3x+y=5

  1. For what values of h the vectors


⟶ [1 ⟶ [-1 ⟶ [5

u1 = -3 u2 = 9 u3 = -7

-2] -6] h]


are linearly independent? (Show all working)


Which of the following is the solution of the equation below?

0x + 0y = 0.

1. (0, 0, 0).

2. (1, 0, 0).

3. No such solution exists.

4. Infinitely many solution or (−1, 2, 1)


Find the inverse of matrix A given below using the formula A -1 =CT/│A│

A="\\begin{vmatrix}\n -6 & -4 & -4 \\\\\n -1 & -4 & 6 \\\\\\\n-6 & 5 & -1\n\\end{vmatrix}"


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