Z z3bra New Member Joined Sep 25, 2016 Messages 16 Gender Undisclosed HSC N/A Oct 13, 2017 #1 Can someone please explain why you add the identities together as shown in the solutions before for part c ii. Thank you. Sent from my iPhone using Tapatalk
Can someone please explain why you add the identities together as shown in the solutions before for part c ii. Thank you. Sent from my iPhone using Tapatalk
C Cena123 Member Joined Oct 4, 2017 Messages 78 Gender Undisclosed HSC N/A Oct 13, 2017 #2 They're deriving the proof by solving simultaneously--> hence they add the identities together
