sydneysheeran sydneysheeran

31-03-2019
Mathematics

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What is the fourth term of the sequence a1=m an= 2an-1

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sqdancefan sqdancefan

31-03-2019

Answer:

8m

Step-by-step explanation:

We assume you're describing a geometric sequence with first term m and common ratio 2. Then the n-th term is ...

a[n] = m·2^(n-1)

and the fourth term is

a[4] = m·2^(4-1) = 8m

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