If the area of ` A B C` formed by `A(x , y),B(1,2)a n dC(2,1)` is 7 squae units, then prove that `x+y=15or ,x+y+9=0`

If the area of A B C formed by A(x , y),B(1,2)a n dC(2,1) is 6 squae units, then prove that x+y=15or ,x+y+9=0

If the area of hat harr ABC formed by A(x,y),B(1,2) and C(2,1) is 7 squae units,then prove that x+y=15 or,x+y+9=0

If the area of Delta ABC formed by vertices A(x,y), B(1,2) and C(2,1) is 6 sq units. then prove that x + y = 15 or x + y = - 9

If the area of DeltaABC with vertices A(x,y),B(1,2)and C(2,1) is 6 square units, then prove that x + y = 15 or x + y + 9=0.

If the area of DeltaABC with vertices A(x,y),B(1,2)and C(2,1) is 6 square units, then prove that x + y = 15 or x + y + 9=0.

If A (x,y), B(1,2) and C(2,1) are the vertices of a triangle of area 6 square units, show that x+y=15 or -9

If A(x, y), B (1, 2) and C (2, 1) are the vertices of a triangle of area 6 square units, show that x+y=15 or -9 .

If A(x, y), B (1, 2) and C (2, 1) are the vertices of a triangle of area 6 square units, show that x+y=15 or -9 .

If the volume of tetrahedron A B C D is 1 cubic units, where A(0,1,2),B(-1,2,1)a n dC(1,2,1), then the locus of point D is a. x+y-z=3 b. y+z=6 c. y+z=0 d. y+z=-3

If the volume of tetrahedron A B C D is 1 cubic units, where A(0,1,2),B(-1,2,1)a n dC(1,2,1), then the locus of point D is a. x+y-z=3 b. y+z=6 c. y+z=0 d. y+z=-3