Obliczenie: LHLse7 - 1
S_n =
| b1* ( q^n-1) |
| / (q-1) |
|
S_n =
$$S_{n}$$ = $$\frac{b1\cdot (q^{n}-1)}{q-1}$$
| b1* ( q^n-1) |
| / (q-1) |
S_n =
-
$$S_{n}$$ = $$\frac{q^{n}\cdot b1}{q-1}-\frac{b1}{q-1}$$
| q^n* b1 |
| / (q-1) |
| b1 |
| / (q-1) |
S_n =
-
$$S_{n}$$ = $$\frac{b1\cdot q^{n}}{q-1}-\frac{b1}{q-1}$$
| b1* q^n |
| / (q-1) |
| b1 |
| / (q-1) |