Book Cersaie 2014 | Collezione di Emozioni / Collections of EmotionsAndrea Mensitieri
There are times when in order to create something truly new we need to abandon our certainties and leave the beaten path.
We must follow unexplored roads, absorb influences and loose ourselves in order to discover new adventures.
And in this space places, memories, people and emotions come to life to place the genesis of each new collection in an environment that is able to narrate, thanks to suggestions, the origins and aesthetic and technical choices of our ceramic tiles.
IV Światowy Dzień Tabliczki Mnożenia - podsumowanie akcjiWKM Rachmistrz
Podsuwowanie akcji edukacyjnej IV Światowy Dzień Tabliczki Mnożenia, organizowanej przez Wydawnictwo WKM Rachmistrz ze Szczecinka.
www.wmtday.org
www.wkmrachmistrz.com.pl
To get the immigration to Canada, you must make sure that you are through with the PR Visa process and making all the possible attempts to make sure that you coming through with it.
Canadian nova scotia to appoint auditors to stop business immigration fraudsKrishan Singh
With a view to curb cases of scam in the two business immigration classes, the Canadian province of Nova Scotia is employing the professional services of skilled auditors.
Book Cersaie 2014 | Collezione di Emozioni / Collections of EmotionsAndrea Mensitieri
There are times when in order to create something truly new we need to abandon our certainties and leave the beaten path.
We must follow unexplored roads, absorb influences and loose ourselves in order to discover new adventures.
And in this space places, memories, people and emotions come to life to place the genesis of each new collection in an environment that is able to narrate, thanks to suggestions, the origins and aesthetic and technical choices of our ceramic tiles.
IV Światowy Dzień Tabliczki Mnożenia - podsumowanie akcjiWKM Rachmistrz
Podsuwowanie akcji edukacyjnej IV Światowy Dzień Tabliczki Mnożenia, organizowanej przez Wydawnictwo WKM Rachmistrz ze Szczecinka.
www.wmtday.org
www.wkmrachmistrz.com.pl
To get the immigration to Canada, you must make sure that you are through with the PR Visa process and making all the possible attempts to make sure that you coming through with it.
Canadian nova scotia to appoint auditors to stop business immigration fraudsKrishan Singh
With a view to curb cases of scam in the two business immigration classes, the Canadian province of Nova Scotia is employing the professional services of skilled auditors.
2. a
b
c
1
2
3
FUNKCIJE
Data su dva skupa A i B. Elementima skupa A na neki način
dodeljujemo elemente skupa B. To je preslikavanje.
A B
3. Ako svakom elementu skupa A odgovara tačno jedan element
skupa B onda takvo preslikavanje nazivamo funkcijom.
Koje od ova tri preslikavanja je funkcija?
a
b
c
1
2
3
A B
f
a
b
c
1
2
3
A B
g
a
b
c
1
2
3
A B
h
4. Funkciju možemo zapisati na razne načine.
1
4
3
3
4
2
2
1
fili
ili f(x)=x2+3
DEF: Funkcija f skupa A u skup B u oznaci f:A→B je podskup
dekartovog proizvoda AxB koje ima osobinu da svakom
elementu skupa A odgovara tačno jedan element skupa B.
1
4
1
2
3
A B
f
4
2
3
5. Ako je f(x)=x2+3 koliko je f(5)?
Ako je f(x)=x2+3 koliko je f(a)?
Ako je f(x)=x2+3 koliko je f(a-1)?
Ako je f(x)=2x+3 koliko je f(x+1)?
Ako je f(x)=2x+3 koliko je f(2x-3)?
x
x
xf
2
2
)(
Ako je koliko je f(2x-3)?
6. 1
4
1
2
3
A B
f
4
2
3
1
2
3
4
g
C
DEF: Neka su f:A→B i g:B→C funkcije. Tada gof označava
proizvod (kompoziciju) praslikavanja f i g i definiše se uslovom.
g(f(x))f)(x)A)((gx(
4.g(2)g(f(1))f)(1)(g
f:A→B i g:B→C, gof: A→C
?f)(3)(g:jeKoliko
Koliko je (gof)(1)?
8. 1
4 1
2
3
f
42
3
DEF: Za praslikavanje f:A→B kaže se da je:
1) "jedan-jedan" ako važi:
"jedan-jedan" i "na" preslikavanje
))f(x)f(xxA)(xx,x( 212121
2) "na" ako važi:
3) bijekcija ako je "jedan-jedan" i "na"
1
4
1
h
42
3
2
1
4 1
2
g
42
3
3
9.
1
4
3
3
4
2
2
1
fAko je koliko je f-1
?
Inverzno ili f -1 preslikavanje
DEF: Ako je f:A→B bijektivno preslikavanje skupa A u skup B,
onda f -1
:B→A preslikavanje skupa B u skup A nazivamo
inverznim ako važi: x)(f(x))A)(fx( -1
1
4
1
2
3
A B
f
4
2
3
f
-1