The distance between lines 3x + 4y = 9 and 6x + 8y = 15 is.
3/2
3/10
6
2/3
The base of equilateral traingle is x + y = 2 and its vertex is (2,-1) , the length of side of traingle is.
√2
√3/2
√(2/3)
√3
Lines a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 will be mutually perpendicular if.
a1 b2 - b1 a2 = 0
a1 a2 + b1 b2 = 0
a12 b2 + b12 a2 = 0
a1 b1 + a2 b2 = 0
The coordinates of foot of perpendicular from (2,3 ) to the line x + y -11 = 0 are
(-6,5)
(5,6)
(-5,6)
(6,5)
The equation of lines passing through (3,2) and perpendicular to y = x is.
x - y = 5
x + y = 5
x + y = 1
x - y =1
If lines 3x - y =2,5x + ay = 3 and 2x + y = 3 are concurrent ,then a =
2
3
-1
-2
If x1,x2,x3 and y1,y2,y3, are in G.P .Where common ratio is r,then point P (x1,y1), Q (x2,y2), R (x3,y3) are on.
A straight line
an ellipse
a circle
Vertices of a triangle
A straight line makes angle 135o with x - axis and cut y - axis at distance -5 from origin.The equation of line is.
2x + y + 5 = 0
x + 2y + 3 = 0
x + y + 5 = 0
x + y + z = 0
The length of perpendicular from (3,1) to line 4x + 3y + 20 = 0 is.
7
8
If lines 3y + 4x = 1 , y = x + 5 and 5y + bx = 3 are concurrent,then the value of b is.
1
0
