I. ` (x+y)^(3) = 1331" "` II. ` x - y + z = 0`
III. ` xy = 28`

I. 7x + 6y = 110 II. 4x + 3y = 59 III. X + z = 15

x + y = 5 xy , 3x + 2y = 13 xy ( x ne 0, y ne 0 )

Given x = 2 - 3i and y = 4 + i . Find (i) xy " "(ii) x + y " " (iii) x - y " "(iv) x/y " " (v) (barx)/y " "(vi) (x-y)^(2)

If 2x = 3y = 4z, find x:y: z.

If (x - 5) (y + 6)(z -8)= 1331 , then the minimum value x + y + z is :

If x = 1, y = 2 and z = 5, find the value of (i) 3x - 2y + 4z (ii) x^(2) + y^(2) + z^(2) (iii) 2x^(2) - 3y^(2) + z^(3) (iv) xy + yz - zx (v) 2x^(2) y - 5yz + xy^(2) (vi) x^(3) - y^(3) - z^(3)

If (x + y + z) = 16 and xy + yz + zx = 75, then x ^(3) + y ^(3) + z ^(3) - 3xyz is

What is the locus of a point for which (i) x =0, y =0 (ii) y =0, z =0 (iii) z =0, x =0 (iv) x =a, y =b (v) y =b, z =0 (vi) z =c, x =a ?

If x^(3) + y^(3) + z^(3) = 3xyz and x + y + z = 0 , find the value of : ((x+y)^(2))/(xy) + ((y+z)^(2))/(yz) + ((z+x)^(2))/(zx)