" 11."121x^(2)y^(2)+110xyab+25a^(2)b^(2)

" The number of common tangents to "x^(2)+y^(2)=256,(x-3)^(2)+(y-4)^(2)=121" is "

Eccentricity of ellipse (x^(2))/(169) + (y^(2))/(25) = 1 and (x^(2))/(a^(2)) + (y^(2))/(b^(2)) = 1 then (a)/(b) = ……..

The number of common tangents to x^(2)+y^(2)=256, (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256 , (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256 (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256 (x-3)^(2)+(y-4)^(2)=121 is

The number of common tangents to x^(2)+y^(2)=256, (x-3)^(2)+(y-4)^(2)=121 is

Tangents are drawn from a point on the circle x^(2)+y^(2)=11 to the hyperbola x^(2)/(36)-(y^(2))/(25)=1 ,then tangents are at angle:

Factorize each of the following expressions: x^(4)-625(2)x^(4)-149(a-b)^(2)-25(a+b)^(2) (4) x-y-x^(2)+y^(2)16(2x-1)^(2)-25y^(2)(6)4(xy+1)^(2)-9(x-1)^(2)

If x+y=15 and xy=56, then what is the value of x^(2)+y^(2)?( a )110( b) 113(c)121 (d) Cannot be determined (e) None of these