Question

ax+ by= c and lx+my=n write the condition so the lines are coincident​

Answer 1

Answer:

The given system of equations may be written as :-

ax+by-c=0

ax+by-c=0lx+my-n=0

Step-by-step explanation:

It is of the form

a1x + b1y + c1 = 0

0a2x + b2y + c2 = 0

Where a1 = 1 , b1 = 2 , c1 = -c

and a2 = l , b2 = m , c2 = -n

For unique solution ,we must have,

a1/a2 is not equal to b1/b2

/a2 is not equal to b1/b2= a/l is not equal to b/m

/l is not equal to b/m= am is not equal to bl

Hence,am is not equal to bl is the required condition.