[" 9f "2u-3y=7" and "(a+b)u-(a+b-3)y=4a+b" ye "pr-],[" sent coinudent lines,then a and "b" satiofy "],[" the equation "]

If 2x-3y=7" and "(a+b)x-(a+b-3)y=4a+b represent coincident lines, then a and b satisfy the equation :

If 2x-3y=7 and (a+b)x-(a+b-3)y=4a+b represent coqucident lines,then a and b satisfy the equation?

If 2x-3y=7 and (a+b)x-(a+b-3)y=4a+b represent coincident lines, then a and b satisfy the equation (a) a+5b=0 (b) 5a+b=0 (c) a-5b=0 (d) 5a-b=0

If 2x-3y=7 and (a+b)x-(a+b-3)y=4a+b represent coincident lines,then a and b satisfy the equation a+5b=0 (b) 5a+b=0 (c) a-5b=0 (d) 5a-b=0

2x + 3y = 7 , (a+b + 1 )x + (a + 2b + 2) y = 4 (a + b ) + 1

Let u-=a x+b y+a b3=0,v-=b x-a y+b a3=0,a ,b in R , be two straight lines. The equations of the bisectors of the angle formed by k_1u-k_2v=0 and k_1u+k_2v=0 , for nonzero and real k_1 and k_2 are u=0 (b) k_2u+k_1v=0 k_2u-k_1v=0 (d) v=0

Let u-=a x+b y+a b3=0,v-=b x-a y+b a3=0,a ,b in R , be two straight lines. The equations of the bisectors of the angle formed by k_1u-k_2v=0 and k_1u+k_2v=0 , for nonzero and real k_1 and k_2 are u=0 (b) k_2u+k_1v=0 k_2u-k_1v=0 (d) v=0

If a,b,c,d are in GP and a^x=b^y=c^z=d^u , then x ,y,z,u are in

The Cartesian equation of the sides BC,CA, AB of a triangle are respectively u_(1)=a_(1)x+b_(1)y+c_(1)=0, u_(2)=a_(2)x+b_(2)y+c_(2)=0 and u_(3)=a_(3)x+b_(3)y+c_(3)=0 . Show that the equation of the straight line through A bisectig the side bar(BC) is (u_(3))/(a_(3)b_(1)-a_(1)b_(3))=(u_(2))/(a_(1)b_(2)-a_(2)b_(1))