Question

= 1 and
= 1, then
+* = 1 be any line through the intersection of lines
+
1 1 1 1
a d b c
1 1 1 1
(C) -+-=-+
cd a b
Ca
(d) none of these​

Answer 1

sorry sister but can'T understand your question .

plz repost it

regards

rg