Question:

Matrix obtained by inter changing the rows and columns is called ………… of a matrix

A.

inverse

B.

transpose

C.

negative

D.

none

Answer» b. transpose

Question:

Determine the determinant of hessian of the function 2×2-2y2 − 4y +6 at point (0, 0)?

A.

2

B.

-4

D.

-8

Answer» d. -8

Question:

A matrix in which every element is zero is called

A.

scalar matrix

B.

null matrix

C.

square matrix

D.

inverse matrix

Answer» b. null matrix

Question:

Determine the minimum of the function f(x,y)= x2+y2 ? Use the point (2, 1) as the initial estimate of the optimal solution. Conduct one iteration.

A.

(2,1)

B.

(−6,−3)

C.

(0,0)

D.

(1,−1)

Answer» d. (1,−1)

Question:

If =1 23 −4 =0 −67 8, then A+B is equal to

A.

1 −410 4

B.

7 9 −3 −4

C.

3 −36 7

D.

none

Answer» a. 1 −410 4

Question:

Inverse of A is denoted as

A.

a−1

B.

at

C.

at

D.

ai

Answer» a. a−1