[" the values of "x" and "y.],[" 13.Express the following sets,explicitely "],[" (i) "{(x,y):x^(2)+y^(2)=25,x,y in N}]

Factorize the following expressions 9(x-2y)^2-4(x-2y)-13

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

Find the value of x and y which satisfy the following equation (x, y in R): If x+2i+15 i^6 y= 7x+ i^3 (y+4), find (x+y)

Factorize the following expressions 7(x-2y)^2-25(x-2y)-12

Find the value of x and y,if (x+2y)+i(2x-3y) is the conjugate of 5+4i .

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) 3x+2y-7 (ii) x^2

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) 2x+3\ (ii) 3x-5y

If x=1 and y=2, find the values of each of the following algebraic expressions: x^(2)y( ii) x^(2)+y^(2)y^(2)+3-x^(2)

x-y relation is given by y=x^(n) calculate the value of n in the following :- (i) y=(x^(2))/(x^(2//3)) (ii) y=(x^(3//2))/(x^(1)) (iii) y=(x^(1//2))/(x^(1//2)) (iv) y=(x^(3//2))/(sqrt(x))