SuicideFuel Problem (The easiest one from Brazil's hardest entrance exam)

[trying to ascend]

Be f: D-->IR a function where D = (x belonging to IR/ X is different from 0 and 1) and that satisfies the equation f(x - 1/x) + f(x) - x + 2 = 0.

The value of f(2) is?

 

[allDead]

idk

 

[Uggo Mongo]

42

 

[slumcel209]

ITA?

 

[trying to ascend]

ITA?

IME, since the math exam, especially the written one, is harder than ITA's one. But overall, both are in a similar level if we take in account the whole test, though the competition makes ITA harder to pass

 

[NirvanaFan1988]

incel and brainlet, worst combo ever

 

[iamsubhuman]

can you solve it without looking it up?

 

[trying to ascend]

I could attempt if I knew what the / between “1/x” mean

(x - 1) divided by x

 

[trying to ascend]

can you solve it without looking it up?

Wdym?

 

[iamsubhuman]

Wdym?

Just wondering considering your young age

 

[trying to ascend]

Just wondering considering your young age

How old are you?

 

[iamsubhuman]

How old are you?

58