If `A = [[5,x], [y,0]]` and `A=A'` then: a) `x=0, y=5` b) `x=y` c) `x+y=5` d) `x-y=5`

If A=[(5,x),( y,0)] and A=A^T , then a) x=0,\ \ y=5 (b) x+y=5 (c) x=y (d) none of these

If the point P(x ,\ y) is equidistant from A(5,\ 1) and B(-1,\ 5) , then (a) 5x=y (b) x=5y (c) 3x=2y (d) 2x=3y

x^2\ x\ \ 2y^3\ x\ \ 5x^3y^2 is equal to: (a) 10 x^2y^5 (b) 10 x^5y^2 (c) 10 x^5y^5 (d) x^5y^5

x=2, y=−1 is a solution of the linear equation (a) x+2y=0 (b) x+2y=4 (c) 2x+y=0 (d) 2x+y=5

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

A rectangle A B C D has its side A B parallel to line y=x , and vertices A ,Ba n dD lie on y=1,x=2, and x=-2, respectively. The locus of vertex C is x=5 (b) x-y=5 y=5 (d) x+y=5

If (-4,0) and (1,-1) are two vertices of a triangle of area 4s qdotu n i t s , then its third vertex lies on (a) y=x (b) 5x+y+12=0 (c) x+5y-4=0 (d) x+5y+12=0

The equation of the bisector of the acute angle between the lines 2x-y+4=0 and x-2y=1 is (a) x-y+5=0 (b) x-y+1=0 (c) x-y=5 (d) none of these

Let (2,3) be the focus of a parabola and x + y = 0 and x-y= 0 be its two tangents. Then equation of its directrix will be (a) 2x - 3y = 0 (b) 3x +4y = 0 (c) x +y = 5 (d) 12x -5y +1 = 0

Locus of a point that is equidistant from the lines x+y-2=0a n dx+y-1=0 is (a) x+y-5=0 (b) x+y-3=0 (c) 2x+2y-3=0 (d) 2x+2y-5=0