If the tangent at (1,7) to curve `x^(2)=y-6` touches the circle `x^(2)+y^(2)+16x+12y+c=0` then the value of c is

If the tangent at (1,7) to the curve x^2=y-6 touches the circle x^2 +y^2+16x+12y+c=0 , then the value of c is

IF the tangent at (1,7) to the curve x ^(2) = y-6 touches the circle x^(2) + y^(2) + 16x + 12 y + c=0, then the value of c is

IF the tangent at (1,7) to the curve x ^(2) = y-6 touches the circle x^(2) + y^(2) + 16x + 12 y + c=0, then the value of c is

Answer the following:If the tangent at (3,-4) to the circle x^2+y^2=25 touches the circle x^2+y^2+8x-4y+c=0 ,then find the value of c.

If tangent to the curve x^(2) = y - 6 at point (1,7) touches the circle x^(2) + y^(2) + 16x + 12y + c = 0 then value of c is ………