" The number of ordered pair(s) "(x,y)" of real numbers satisfying the equation "1+x^(2)+2x sin(cos^(-1)y)=0," is "

The number of ordered pairs (x,y) of real numbers that satisfy the simultaneous equations x+y^(2)=x^(2)+y=12 is

The number of ordered pairs of integers (x,y) satisfying the equation x ^2+6x+y^2 =4 is

Find the number of ordered pair of real numbers (x, y) satisfying the equation: 5x(1+1/(x^(2)+y^(2)))=12 & 5y(1-1/(x^(2) + y^(2))) =4

Find the number of ordered pairs of natural numbers (x, y) satisfying the equation: (xy-1)^(2) = (x+1)^(2) + (y+1)^(2)

The number of ordered pairs (x,y) of real number satisfying 4x^(2)-4x+2=sin^(2)y and x^(2)+y^(2)<=3 equal to

The number of distinct pairs (x,y) of the real number satisfying x=x^(3)+y^(4) and y=2xy is

If x in[0,6 pi],y in[0,6 pi] then the number of ordered pair (x,y) which satisfy the equation sin^(-1)sin x+cos^(-1)cos y=(3 pi)/(2) are