`4x+10/y=2; 9x-4/y=17/20`

Find the locus of the centre of the circle which cut the circles x^2+y^2+4x-6y+9=0 and x^2+y^2-4x+6y+4=0 orthogonally (a) 9x+10y-7=0 (b) 8x-12y+5=0 (c) 9x-10y+11=0 (d) 9x+10y+7=0

The equation of the tangent to the parabola y^2 = 9x which goes through the point (4, 10) is (A) x+4y+1=0 (B) 9x+4y+4=0 (C) x-4y+36=0 (D) 9x-4y+4=0

The system of equations 4x+y+2z=5, x-5y+3z=10, 9x-3y+7z=20 has

The system of equation 4x + y + 2z =5 x - 5y + 3z =10 9x - 3y + 7z =20 has

6x-9y-20z=-4 4x-15y+10z=-1 2x-3y-5z=-1

Solve the system of equations 2/x+3/y+(10)/z=4 , 4/x-6/y+5/z=1 , 6/x+9/y-(20)/z=2

Solve the system of equations 2/x+3/y+10/z=4,4/x-6/y+5/z=1,6/x+9/y-20/z=2 by Gauss Jordan method.

Solve the following system of linear equations 2/x+3/y+(10)/z=4 4/x-6/y+5/z=1 6/x+9/y-(20)/z=2

If 4x+5y=10,5x+4y=17 then find the value of x+y and x-y .