Find all the possible values of following expressions :
(i) ` ( |x|)/(x) + (|y|)/y `
(ii) `|x|/x+|y|/y+|z|/z`

Find all the possible values of expression : ( |x|)/(x) + (|y|)/y

Find all the possible values of expression : ( |x|)/(x) + (|y|)/y

Factorize each of the following expressions : x(x+z)-y(y+z)

Factorize each of the following expressions: x(x+z)-y(y+z)

Factorize each of the following expressions: (i) 3-12(a-b)^2 (ii) x(x+z)-y(y+z)

Factorise the following expressions : x^2 y z + x y^2z + x y z^2

If x=1,\ y=-2\ a n d\ z=3, find the values of each of the following algebraic expressions: (i) x^3+y^3+z^3-3x y z (ii) 3x y^4-15 x^2y+4z

Identify the monomials, binomials, trinomials and quadrinomials among the following algebraic expressions: (i) a x+b y+c z+d (ii) 3x y z (iii) x+y+z-x y z

Evaluate each of the following expressions for x=-2,\ y=-1,\ z=3: (i) x/y+y/z+z/x (ii) x^2+y^2+z^2-x y-y z-z x

Evaluate each of the following expressions for x=-2,\ y=-1,\ z=3: (i) x/y+y/z+z/x (ii) x^2+y^2+z^2-x y-y z-z x