Question

5. By taking x =- 5/3 y =2/7 and z= 1/-4,verify that-
(ii) x + (x - 2) + x + y - X+Z
(iii) (x + y) +2=X+2+ y +Z​

Answer 1

Answer:

$\frac{ - 361}{84}$

Answer 2

Answer:

Using properties of determinants, prove that <br> `|{:(y + z ,z + x ,x + y ),(z + x ,x + y ,y + z),(x + y ,y + z,z + x ):}|=2 |{:(x, y, z),(y, z, x),(z, x, y):}|= - 2 (x^(3) + y^(3) + z^(3) - 3xyz) `