If `A=[5x y0]` and `A=A^T` , then `x=0,\ \ y=5` (b) `x+y=5` (c) `x=y` (d) none of these

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

If A=[(3 ,x), (y ,5)] and A=A^T then (A)x=0,y=5 (B)x+y=5 (C)x=y (D)none of these

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

Equation of a straight line passing through the origin and making with x-axis an angle twice the size of the angle made by the line y=0.2x with the x -axis,is : y=0.4x( b) y=((5)/(12))x6y-5x=0 (d) None of these

The locus fo the center of the circles such that the point (2,3) is the midpoint of the chord 5x+2y=16 is (a)x-5y+11=0 (b) 2x+5y-11=0( c) 2x+5y+11=0 (d) none of these

The equation of y-axis are (A) x=0,y=0 (B) x=0,z=0 (C) y=0,z=0 (D) none of these

The center of a rectangular hyperbola lies on the line y=2x. If one of the asymptotes is x+y+c=0, then the other asymptote is 6x+3y-4c=0 (b) 3x+6y-5c=03x-6y-c=0 (d) none of these

Find the equation of the line passing through (–3, 5) and perpendicular to the line through the points (2, 5) and (–3, 6). (a)5x-y+20=0 (b)6x-4y=9 (c)3x-5y-9=0 (d)None of these

If 3x+7y=75 and 5x-5y=25, then what is the value of x+y?(a)14(b)15 (c) 16 (d) 17 (e) None of these

Find the equation of a line passing through point (5, 1) and parallel to the line 7x – 2y + 5 = 0. (a)7x-2y-33=0 (b)6x-8y=0 (c)5x-8y-9=0 (d)None of these