SATHEE: Sequence And Series Question 108

Sequence And Series Question 108

Question: If $ a_1=a_2=2,\ a_{n}={a_{n-1}}-1\ (n>2) $ , then $ a_5 $ is

Options:

A) 1

B) $ -1 $

C) 0

D) $ -2 $

Show Answer

Answer:

Correct Answer: B

Solution:

Obviously, $ a_3=a_2-1=2-1=1 $ $ a_4=a_3-1=1-1=0 $ $ a_5=a_4-1=0-1=-1. $

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Sequence And Series Question 108

Question: If $ a_1=a_2=2,\ a_{n}={a_{n-1}}-1\ (n>2) $ , then $ a_5 $ is

Options:

Answer:

Solution:

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