If `x, y, z in Q` such that `(2x-y) + (2x-y) sqrt3 = (x + z) + (x-y-1)sqrt5` then find `x, y, z`.

If sqrt(x+1)+sqrt(y)+sqrt(z-4)=(x+y+z)/(2), then find x+y+z

If [(x-y, z),(2x-y, w)] = [(-1,4),(0,5)] , find x , y , z and w.

If x , y ,z in [-1,1] such that cos^(-1)x+cos^1y+cos^(-1)z=3pi, then find the values of (1) x y+y z+z x and (2) x(y+z)+y(z+x)+z(x+y)

If x , y ,z in [-1,1] such that cos^(-1)x+cos^1y+cos^(-1)z=3pi, then find the values of (1). x y+y z+z y and (2). x(y+z)+y(z+x)+z(x+y)

If x , y ,z in [-1,1] such that cos^(-1)x+cos^1y+cos^(-1)z=3pi, then find the values of (1) x y+y z+z y and (2) x(y+z)+y(z+x)+z(x+y)

If x, y, z are in A.P then 1/(sqrt(x) + sqrt(y)) , 1/(sqrt(z) + sqrt(x)) , 1/(sqrt(y) + sqrt(z)) are in

If [{:(x-y,2x+z),(2x-y,3z+w):}]=[{:(-1,5),(0,13):}] then find x,y,z and w .

tan ^ (- 1) ((sqrt (x (x + y + z))) / (yz)) + tan ^ (- 1) sqrt ((y (x + y + z)) / (xz)) + tan ^ (- 1) (sqrt ((z (x + y + z)) / (xy))) = pi

2x + 3y-5z = 7, x + y + z = 6,3x-4y + 2z = 1, then x =

If x = 16, y = 10, z = 5 and t=-1, find the value of (x-y)(5sqrtx-y)+sqrt((x-y)(z-t)) .