The line common to the given families of line `a(x+y+1)+b(2x-3y-8)=0` and `lambda(x-y-1)+mu (2x-y-1)=0` is :
(A)`x+y+1=0`
(B) `x+y-1=0`
(C)`x+y-2=0`
(D) None of these

The equation of straight line belonging to both the families of lines (x-y+1)+lambda_1(2x-y-2)=0 and (5x+3y-2)+lambda_2(3x-y-4)=0 where lambda_1, lambda_2 are arbitrary numbers is (A) 5x -2y -7=0 (B) 2x+ 5y - 7= 0 (C) 5x + 2y -7 =0 (D) 2x- 5y- 7= 0

Consider the family of lines (x+y-1)+lambda(2x+3y-5)=0 and (3x+2y-4)+mu(x+2y-6)=0 Equation of a line that belongs to both the family is (A) x-2y-8=0 (B) x-2y+8=0 (C) 2x+y-8=0 (D) 2x-y-8=0

Consider the family of lines (x+y-1)+lambda(2x+3y-5)=0 and (3x+2y-4)+mu(x+2y-6)=0 Equation of a line that belongs to both the family is (A) x-2y-8=0 (B) x-2y+8=0 (C) 2x+y-8=0 (D) 2x-y-8=0

The equation of common tangent at the point of contact of two parabola y^(2)=x and 2y=2x^(2)-5x+1 is x+y+1=0 (B) x+2y+1=0( C) x-2y-1=0( D )-x+2y-1=0

The image of line 2x+y=1 in line x+y+2=0 is : (A) x+2y-7=0 (B) 2x+y-7=0 (C) x+2y+7=0 (D) 2x+y+7=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

Equation of line BC is 14x+23y-40=0 (b) 4x-2y+1=04x+2y-1=0(d) none of these

The equation of the plane containing the line 2x+z-4=0 nd 2y+z=0 and passing through the point (2,1,-1) is (A) x+y-z=4 (B) x-y-z=2 (C) x+y+z+2=0 (D) x+y+z=2

The equation of the plane containing the line 2x+z-4=0 nd 2y+z=0 and passing through the point (2,1,-1) is (A) x+y-z=4 (B) x-y-z=2 (C) x+y+z+2=0 (D) x+y+z=2