elingop elingop

23-08-2021
Mathematics

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Find the formula for the geometric sequence 4, -8, 16, -32

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sadovnichenkoant sadovnichenkoant

23-08-2021

Answer:

bn=4*(-2)^(n-1) where n is a number of searched term

Step-by-step explanation:

b1=4 b2=-8

q=b2/b1=-8/4=-2

bn=b1*q^(n-1)

bn=4*(-2)^(n-1) where n is a number of searched term

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