freeeeee
Member
- Joined
- Oct 31, 2011
- Messages
- 282
- Gender
- Male
- HSC
- 2012
when they say x = e^-2X for x=0.6 and x=0.7 ....................
You first have to rearrange to like ----> fx = e^-2x - x or fx = x - e^-2x
But how do you know which one to rearrange to? they both give different values if you sub x = 0.6 or 0.7
Heres another example:
lnx = cosx
you will have to rearrange to fx = cosx -lnx or fx = lnx -cosx
How do you know which one to arrange to?
You first have to rearrange to like ----> fx = e^-2x - x or fx = x - e^-2x
But how do you know which one to rearrange to? they both give different values if you sub x = 0.6 or 0.7
Heres another example:
lnx = cosx
you will have to rearrange to fx = cosx -lnx or fx = lnx -cosx
How do you know which one to arrange to?