usuń neiwymeirnośc
bania: usuń niewymiernośc z mianownika z podanych liczb
b) 2/4√8
c) 1/3√5+1
12 lut 18:24
nestor:
| | 2 | | 4√83 | | 24√83 | | 4√83 | |
1) |
| * |
| = |
| = |
|
|
| | 4√8 | | 4√83 | | 8 | | 4 | |
2) a
3+b
3= (a +b) (a
2−ab+b
2)
| 1 | | 3√25−3√5+1 | | 3√25−3√5+1 | |
| * |
| = |
| =
|
| 3√5+1 | | 3√25−3√5+1 | | 5+1 | |
12 lut 18:59