Got it.thanks:)
On Apr 13, 2016 12:12 PM, "samuraijack [via Discussion forum]" <
[hidden email]> wrote:
Question 5
Answer (a) Zero
(x-a).(x-b).(x-c).........(x-x).(x-y).(x-z) = 0
Question 6
Answer (d) None of these
ab<cd this imples a/c < d/b if and only if (c>0 and b>0) or (c<0 and b<0)