The value of 'c' for which the set `{(x,y)|x^2+y^2+2x le 1}nn{(x,y)|x-y+cle0}` contains only one point in common is

The value of 'c' for which the set {(x,y)|x^(2)+y^(2)+2x<=1}nn{(x,y)|x-y+c<=0} contains only one point in common is

The value of 'k' for which the set {(x,y)|x^(2)+y^(2)-2x-2y+1 =0} contains only one point in common is

The sum of all the values of lambda for which the set {(x, y):x^(2)+y^(2)-6x+4y=12}nn{(x, y): 4x+3y lambda} contains exactly one element is

The area of the region {(x,y):x^(2)+y^(2) le 1 le x+y} , is

The set {(x, y)|3 le x^(2) + y^(2) le 4} is not a convex set.

Find the area of the region [x,y): x^2+y^2 le 1 le x+ y }

The number of values of a for which the system of equations 2^(|x|)+|x|=y+x^(2)+a and x^(2)+y^(2)=1 has only one solution where a,x,y are real, is

The area of the region described by A = {(x,y) : x^(2)+y^(2) le 1 and y^(2) le 1-x} is :