Find the first four terms of the given sequence.
-$\mathrm{a}_{1}=9, \mathrm{a}_{\mathrm{n}}=2 \cdot \mathrm{a}_{\mathrm{n}}-1$
A) $18,36,72,144$
B) $0,4,36,40$
C) $9,36,40,44$
D) $9,18,36,72$

Question

Quizplus · Accepted Answer

The given sequence is incorrect as written; it should likely be $\mathrm{a}_{\mathrm{n}}=2 \cdot \mathrm{a}_{\mathrm{n}-1}$ for $n > 1$. Starting with $\mathrm{a}_{1}=9$, each term is double the previous one, leading to the sequence 9, 18, 36, 72.

Find the First Four Terms of the Given Sequence a1=9,an=2⋅an−1\mathrm{a}_{1}=9, \mathrm{a}_{\mathrm{n}}=2 \cdot \mathrm{a}_{\mathrm{n}}-1a1​=9,an​=2⋅an​−1

Find the First Four Terms of the Given Sequence $\mathrm{a}_{1}=9, \mathrm{a}_{\mathrm{n}}=2 \cdot \mathrm{a}_{\mathrm{n}}-1$