Original post by DMcG
if f(x)=1/x+1 , prove that f^2(x)=x+1/x+2. Hence find an expression for f^3(x).
Please help, having trouble with the first part about proving it. Any help is extremely appreciated!
Please help, having trouble with the first part about proving it. Any help is extremely appreciated!
If f(x) is a function, in words or otherwise, what is f^2(x)
(Hint: it has no relevance to squaring the whole expression as you might think)
(edited 6 years ago)
Original post by Kevin De Bruyne
If f(x) is a function, in words or otherwise, what is f^2(x)
(Hint: it has no relevance to squaring the whole expression as you might think)
(Hint: it has no relevance to squaring the whole expression as you might think)
so would it be 1/1+(1/x+1), if you can understand the badly used symbols
TBH if it was that i wouldn't know how to solve a fraction in a fraction
(edited 6 years ago)
Original post by DMcG
so would it be 1/1+(1/x+1), if you can understand the badly used symbols
100% correct - can you pick up the rest from here?
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