Please Subscribe here, thank you!!! goo.gl/JQ8Nys Proving the Function f(x) = sqrt(x + 2) is One to One(Injective) using the Definition
Пікірлер: 10
@xetro8190Ай бұрын
Where can I ask my doubts to you
@jessexd32515 жыл бұрын
Hey nice video. But won't you end up getting a=b everytime if you replace x with a and b in any equation?
@TheMathSorcerer5 жыл бұрын
nope, not if it's not 1 to 1:) like say f(x) = |x|, if we we let f(a) = f(b), we get |a| = |b|, this doesn't mean a = b:) We could have like |-2| = |2|, but -2 is not the same as 2