Question

write the condition that pair of linear equations l1x + l2y t m = 0 and p1x + p2y + q =0 has a) infinite solutions b) parallel solutions​

Answer 1

Answer:

a) Condition for infinite solutions (coincident lines)

a1/a2=b1/b2=c1/c2

b) condition for no solution (parallel lines)

a1/a2=b1/b2 not equal to c1/c2