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Mama L [17]
3 years ago
11

The question is: type your equation for the following pattern

Mathematics
1 answer:
Nana76 [90]3 years ago
7 0

Answer:

\large\boxed{a(n)=16\left(\dfrac{1}{2}\right)^{n-1}}

Step-by-step explanation:

a(1)=16\\\\a(2)=16:2=8\\\\a(3)=8:2=4\\\\a(4)=4:2=2\\\\a(5)=2:2=1\\\\a(n)=a_{n-1}:2=\dfrac{1}{2}a_{n-1}

This is a geometric series with the common ratio r=\dfrac{1}{2} and the first term a_1=16.

An explicit formula of the n-th term of a geometric sequence:

a_n=a_1r^{n-1}

Substitute:

a_n=16\left(\dfrac{1}{2}\right)^{n-1}

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