If `(-2,\ 1)` is the centroid of the triangle having its vertices at `(x ,\ 0),\ (5,\ -2),\ (-8,\ y),` then `x ,\ y` satisfy the relation `3x+8y=0` (b) `3x-8y=0` (c) `8x+3y=0` (d) `8x=3y`

8x+5y-11=0; 3x-4y-10=0

Orthocentre of the triangle formed by lines 2x+3y-5=0 ,5x+8y+3=0,6x-4y-2=0 is :

Coordinates of the orthocentre of the triangle whose sides are 3x-2y=6,3x+4y+12=0 and 3x-8y+12=0is

The linear system of equations 8x-3y-5z=0,5x-8y+3z=0 and 3x+5y-8z=0

Find the centre and radius of the circle 3x^2 + 3y^2 - 8x - 10y + 3=0

STATEMENT-1 : The centroid of a tetrahedron with vertices (0, 0,0), (4, 0, 0), (0, -8, 0), (0, 0, 12)is (1, -2, 3). and STATEMENT-2 : The centroid of a triangle with vertices (x_(1), y_(1), z_(1)), (x_(2), y_(2), z_(2)) and (x_(3), y_(3), z_(3)) is ((x_(1)+x_(2)+x_(3))/3, (y_(1)+y_(2)+y_(3))/3, (z_(1)+z_(2)+z_(3))/3)

Find the centre and the radius of the circles 3x^(2) + 3y^(2) - 8x - 10y + 3 = 0

The equation of the tangent to the parabola y^(2)=8x which is perpendicular to the line x-3y+8=0 , is