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Geometric sequences (multiply each time)
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Learn it A geometric sequence multiplies by the same ratio r each time: $t_n = a \times r^{n-1}$.
Example: Find the 6th term of 3, 6, 12, 24, …
- a = 3, r = 2.
- $t_6 = 3 \times 2^5$.
- $= 3 \times 32 = 96$.
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