1. **State the problem:** We have a geometric sequence with the first term $a_1 = -2$ and common ratio $r = -\frac{1}{4}$. We need to find the next three terms $a_2$, $a_3$, and $a_4$.
2. **Formula for the $n$th term of a geometric sequence:**
$$a_n = a_1 \times r^{n-1}$$
This means each term is the first term multiplied by the common ratio raised to the power of one less than the term number.
3. **Calculate the next three terms:**
- For $a_2$:
$$a_2 = -2 \times \left(-\frac{1}{4}\right)^{2-1} = -2 \times \left(-\frac{1}{4}\right) = \frac{2}{4} = \frac{1}{2}$$
- For $a_3$:
$$a_3 = -2 \times \left(-\frac{1}{4}\right)^{3-1} = -2 \times \left(-\frac{1}{4}\right)^2 = -2 \times \frac{1}{16} = -\frac{2}{16} = -\frac{1}{8}$$
- For $a_4$:
$$a_4 = -2 \times \left(-\frac{1}{4}\right)^{4-1} = -2 \times \left(-\frac{1}{4}\right)^3 = -2 \times \left(-\frac{1}{64}\right) = \frac{2}{64} = \frac{1}{32}$$
4. **Final answer:** The next three terms of the sequence are $\frac{1}{2}$, $-\frac{1}{8}$, and $\frac{1}{32}$.
Geometric Sequence 7E0C87
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.