1. **Statement of the problem:**
Calculate the first three terms of the sequence $(u_n)$ defined by:
$$u_n = -3n + 2$$
and also for the sequence defined by the recurrence:
$$u_0 = 2$$
$$u_{n+1} = 3u_n - 1$$
2. **First sequence $(u_n = -3n + 2)$:**
- For $n=0$: $$u_0 = -3 \times 0 + 2 = 2$$
- For $n=1$: $$u_1 = -3 \times 1 + 2 = -3 + 2 = -1$$
- For $n=2$: $$u_2 = -3 \times 2 + 2 = -6 + 2 = -4$$
3. **Second sequence defined by recurrence:**
- Given initial term: $$u_0 = 2$$
- Calculate $u_1$:
$$u_1 = 3u_0 - 1 = 3 \times 2 - 1 = 6 - 1 = 5$$
- Calculate $u_2$:
$$u_2 = 3u_1 - 1 = 3 \times 5 - 1 = 15 - 1 = 14$$
**Final answers:**
- First sequence terms: $u_0=2$, $u_1=-1$, $u_2=-4$
- Second sequence terms: $u_0=2$, $u_1=5$, $u_2=14$
Sequence Terms E04953
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