MATHEMATICS II - Deneme Sınavı - 10

minimum {5,5,3,6}=3.

There exists an equilibrium  pair  ( 2 nd row 2 nd  column) the number 1 , which lies in the intersection of 2 st row, 2 st column is the lowest in the 2 st row, is the greatest in the 2 st column. Correct answer is  E .

This common value corresponds to the  2 nd row and 3 rd  column.

Correct answer is C.

Correct answer is A.

Correct answer is D.

The number 0 corresponds to the 2 nd column.

Correct answer is E.

 Correct answer is A.

The   maximum of the numbers -5,6,-1,1  is 6 .The corresponding row is the 2 nd row.  Correct answer is D.

Correct answer is D

We find the determinant of the coefficient matrix using Sarrus’ rule:

and we find  

and the detreminant of this matrix is

The other matrices we use in the Cramer’s rule are

and their determinats are

Then the solution is

   and as follows:

Now we add the equations to eliminate the term

 then one gets

If we back-subsitute

into the equations

we obtain

Then these lines intersect at the point

is

the inverse of

is

one has

then

is obtained.  Since

is given, we  should have

From this equation one has

Then answer is