| 1 | 1 | 2x | 4x3 | 8x7 | ||||||
a) | − | − | − | − | zał: x≠−1 i x≠1 | |||||
| 1−x | 1+x | 1+x2 | 1+x4 | 1+x8 |
| 1 | 1 | 2 | 4 | 8 | 16 | |||||||
b) | + | + | + | + | + | zał: x≠−1 i x≠1 | ||||||
| 1−x | 1+x | 1+x2 | 1+x4 | 1+x8 | 1+x16 |
| 1 | 1 | 1 | 1 | 1 | ||||||
c) | + | + | + | + | zał:x≠−5 i | |||||
| x(x+1) | (x+1)(x+2) | (x+2)(x+3) | (x+3)(x+4) | (x+4)(x+5) |
| z | x2+x−1 | x2−x−1 | 2x3 | |||||
d) | + | + | − | zał: x≠−1 i x≠1 | ||||
| x2−1 | x3−x2+x−1 | x3+x2+x+1 | x4−1 |
| 1 | 1 | 1 | ||||
c) Wzór | = | − | ||||
| x(x+1) | x | x+1 |
| 1 | 1 | |||
Nie umiesz sprowadzić | − | do wspólnego mianownika ? | ||
| 1−x | 1+x |