Consider a sequence defined on the set of non-negative integers as follows: an = -2(-1)" for n 2 0. Which among the following is a recursive definition of this sequence? ao = -2, an = -an-1 for n > 0. o ao = -2, an = -2an-1 for n > 0. %3D ao = 2, an = -an-1 for n > 0. ao = 2, an = -2an-1 for n > 0.

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Question 18
Consider a sequence defined on the set of non-negative integers as follows:
an = -2(-1)" for n > 0.
Which among the following is a recursive definition of this sequence?
ao = -2, an
= -an-1 for n > 0.
ao = -2, an = -2an-1 for n > 0.
%3|
ao
E 2, аn 3 —ап-1 for n > 0.
%3D
аo 3 2, аn 3 — 2ап-1 for n > 0.
Transcribed Image Text:Question 18 Consider a sequence defined on the set of non-negative integers as follows: an = -2(-1)" for n > 0. Which among the following is a recursive definition of this sequence? ao = -2, an = -an-1 for n > 0. ao = -2, an = -2an-1 for n > 0. %3| ao E 2, аn 3 —ап-1 for n > 0. %3D аo 3 2, аn 3 — 2ап-1 for n > 0.
Question 19
We want to put flowers into 5 vases, what is the minimum number of flowers do we need to guarantee that the vase with MOST flowers contains at least 4 flowers?
4*(5-1)+1=17
T5/41=1
5*(4-1)+1=16
5*4=20
Transcribed Image Text:Question 19 We want to put flowers into 5 vases, what is the minimum number of flowers do we need to guarantee that the vase with MOST flowers contains at least 4 flowers? 4*(5-1)+1=17 T5/41=1 5*(4-1)+1=16 5*4=20
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