IF ALL ELEMENTS OF A THIRD ORDER DETERMINANT ARE EQUAL TO 1 OR -1, THEN THE DETERMINANT ITSELF IS

(a) an ODD NUMBER
(b) an EVEN NUMBER
(c)an IMAGINARY NUMBER
(d) a REAL NUMBER

Question

IF ALL ELEMENTS OF A THIRD ORDER DETERMINANT ARE EQUAL TO 1 OR -1,
THEN THE DETERMINANT ITSELF IS

(a) an ODD NUMBER
(b) an EVEN NUMBER
(c)an IMAGINARY NUMBER
(d) a REAL NUMBER

Anuradha Sharma · Accepted Answer

Let A=11-11-1111-1=11-1-1-1-1-11+1=2-2=0So it is always a real number

IF ALL ELEMENTS OF A THIRD ORDER DETERMINANT ARE EQUAL TO 1 OR -1, THEN THE DETERMINANT ITSELF IS (a) an ODD NUMBER(b) an EVEN NUMBER(c)an IMAGINARY NUMBER(d) a REAL NUMBER