If (3-4i) (x+yi) =1, find x,y where `x,y in R`

If x = (3 - i) , y = (2 + i) , find |(x + y + 1)/(x - y + 1)|

If (x+iy)^(1/3)=a+ib , where a,b,x, y in R, show that x/a-y/b=-2(a^2+b^2) .

Let A = {1, 2, 3,...,14}. Define a relation R from A to A by R = {(x, y) : 3x-y= 0, where x,y in A}. Write down its domain, codomain and range.

If f(x)=max| 2 siny-x |, (where y in R ), then find the minimum value of f(x).

Let f(x,y)=x^(2)+2xy+3y^(2)-6x-2y, where x, y in R, then

Let A = {1, 2, 3, .........., 14}. Define a relation R from A to A by R = {(x,y): 3x-y=0, where x, y in A}. Depict this relationship using an arrow diagram.

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

Let A = (2,3,4,5,6,7,8,9). Let R be the relation on A defined by (x,y):x in A, y in A and x divides y .Find R