- #1
woundedtiger4
- 188
- 0
Hi all,
I am trying to understand this basic proof but I don't understand that where the equations (3) & (4) have come from?
[img=http://s9.postimg.org/8nwoy04vj/image.jpg]
p.s. sorry if I have posted this thread on wrong website.
I am trying to understand this basic proof but I don't understand that where the equations (3) & (4) have come from?
[img=http://s9.postimg.org/8nwoy04vj/image.jpg]
p.s. sorry if I have posted this thread on wrong website.