4sqrt(10)

Distance between the lines represented by 9x^2-6x y+y^2+18 x-6y+8=0 , is 1. 1/(sqrt(10)) 2. 2/(sqrt(10)) 3. 4/(sqrt(10)) 4. sqrt(10) 5. 2/(sqrt(5))

Distance between the lines represented by 9x^2-6x y+y^2+18 x-6y+8=0 , is 1/(sqrt(10)) 2. 2/(sqrt(10)) 3. 4/(sqrt(10)) 4. sqrt(10) 5. 2/(sqrt(5))

Distance between the lines represented by 9x^(2)-6xy+y^(2)+18x-6y+8=0, is 1(1)/(sqrt(10))2*(2)/(sqrt(10))3*(4)/(sqrt(10)) .sqrt(10)5.(2)/(sqrt(5))

sin^(-1)sin((3x^(2)-1)/(2x^(2)+2))lt(3)/(4) if (1) -sqrt((5)/(3))ltxltsqrt((5)/(3))quad (2) -(sqrt(10))/(3)ltxlt(sqrt(10))/(3) (3) -1ltxlt1quad (4) -(sqrt(10))/(4)ltxlt(sqrt(10))/(4)

Radius of the circle x^2+y^2+2x costheta+2y sin theta-8=0 is 1 2. 3 3. 2sqrt(3) 4. sqrt(10) 5. 2

Radius of the circle x^(2)+y^(2)+2x cos theta+2y sin theta-8=0 is 12 . 33.2sqrt(3)4.sqrt(10)5.2

If the distance between the points (3 , k) and (4 , 1) is sqrt(10) then the value of k = .....