2 years ago

21. Given the pattern below, which recursive formula represents the number of triangles in this sequence?

1 answer:

6 0

Answer:

its 4

Step-by-step explanation:

a 1 = 3 , a n = a n - 1 + 2

because if you aply this to the shapes that you see at problem 21 you will see that it meaches them

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larisa86 [58]

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stira [4]

Hey there,
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