Core 3 Maths Question
Watch
Announcements
Page 1 of 1
Skip to page:
Hi!
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?
0
reply
Report
#2
(Original post by XxsciencemathsxX)
Hi!
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?
Hi!
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?





In your case, it is clear that




1
reply
Report
#3
(Original post by XxsciencemathsxX)
Hi!
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?
Hi!
Can someone please help with with MEI C3 June 2015 Q7 i)?
It says that f(f(x))= x hence write down f^-1(x). Why is f^-1(x)= f(x)?

So if you have

Alternatively you can do this:
Take


Then



1
reply
X
Page 1 of 1
Skip to page:
Quick Reply
Back
to top
to top