ZBIRKA POTPUNO RIJEŠENIH ZADATAKA
PDF ogledni primjerak - MIM-Sraga
PDF ogledni primjerak - MIM-Sraga
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Rješenja i kompletni postupak<br />
M-8-Kvadriranje i korjenovanje<br />
5.<br />
Koristimo pravilo:<br />
Inačin:<br />
2 2<br />
2 2<br />
2<br />
2<br />
2 2<br />
= ⋅ II način: =<br />
⎛ 1⎞ ⎛12 ⋅ + 1⎞<br />
⎛2+<br />
1⎞ ⎛3⎞<br />
3 3 9<br />
9) ⎜1 ⎟ = 2<br />
⎜ 2<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = ⋅ =<br />
⎝ ⎠ ⎝ ⎠ ⎝ 2 ⎠ ⎝ 2 ⎠ 2 2 4<br />
a<br />
a a<br />
↓<br />
↑<br />
⎛a⎞<br />
⎜ ⎟<br />
⎝b<br />
⎠<br />
mješoviti prvo pretvorimo u razlomak pa tek tada kvadriramo<br />
a<br />
= a⋅a<br />
a<br />
b<br />
2<br />
II način<br />
⎛ 1 ⎞<br />
⎜1 ⎟<br />
⎝ 2 ⎠<br />
2<br />
2 2 2 2<br />
⎛1⋅ 2+ 1⎞ ⎛2+<br />
1⎞ ⎛3⎞<br />
3 9<br />
= ⎜<br />
2<br />
2<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = =<br />
⎝ ⎠ ⎝ 2 ⎠ ⎝2⎠<br />
2 4<br />
Inačin<br />
II način<br />
2 2<br />
2 2<br />
⎛ 2⎞ ⎛23 ⋅ + 2⎞<br />
⎛6+<br />
2⎞ ⎛8⎞<br />
8 8 64<br />
10) ⎜2 ⎟ = 3<br />
⎜ 3<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = ⋅ =<br />
⎝ ⎠ ⎝ ⎠ ⎝ 3 ⎠ ⎝ 3 ⎠ 3 3 9<br />
2 2<br />
2 2 2<br />
⎛23 ⋅ + 2⎞<br />
+<br />
2 = 3<br />
⎜ 3<br />
⎟ = = = =<br />
3 3<br />
2 9<br />
⎛ 2⎞ ⎛6 2⎞ ⎛8⎞<br />
8 64<br />
⎜ ⎟ ⎜ ⎟ ⎜ ⎟<br />
⎝ ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ 3<br />
Inačin<br />
2<br />
2 2 2<br />
⎛ 1 ⎞ ⎛35 ⋅ + 1⎞<br />
⎛15+<br />
1⎞ ⎛16 ⎞ 16 16 256<br />
11) ⎜3 ⎟ = 5<br />
⎜<br />
⎝ ⎠ ⎝ 5<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = ⋅ =<br />
⎠ ⎝ 5 ⎠ ⎝ 5 ⎠ 5 5 25<br />
II način<br />
2 2<br />
2 2 2<br />
⎛ 1 ⎞ ⎛35 ⋅ + 1⎞<br />
⎛15+<br />
1⎞ ⎛16 ⎞ 16 1616 ⋅ 256<br />
⎜3 ⎟ = 5<br />
⎜ 5<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = = =<br />
5 5 5<br />
2<br />
⎝ ⎠ ⎝ ⎠ ⎝ ⎠ ⎝ ⎠ 5 ⋅ 5 25<br />
Inačin<br />
2 2<br />
2 2<br />
⎛ 5 ⎞ ⎛16 ⋅ + 5⎞<br />
⎛6 + 5⎞ ⎛11⎞<br />
11 11 121<br />
12) ⎜1 ⎟ = 6<br />
⎜ 6<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = ⋅ =<br />
⎝ ⎠ ⎝ ⎠ ⎝ 6 ⎠ ⎝ 6 ⎠ 6 6 36<br />
II način<br />
2 2<br />
2 2 2<br />
⎛ 5 ⎞ ⎛16 ⋅ + 5⎞ ⎛6 + 5⎞ ⎛11⎞<br />
11 1111 ⋅ 121<br />
⎜1 ⎟ =<br />
⎝ 6<br />
⎜<br />
2<br />
6<br />
⎟ = ⎜ ⎟ = ⎜ ⎟ = = =<br />
⎠ ⎝ ⎠ ⎝ 6 ⎠ ⎝ 6 ⎠ 6 6⋅6<br />
36<br />
16