CBSE Class 10 Answered
check whether -105 is a term of AP: 11,8,5,2.....
Asked by kumarrishavsingh7 | 17 Oct, 2023, 00:37: AM
Given arithmetic progression is 11 , 8 , 5 , 2 ......................
First term a = 11 and common difference d = -3
if -105 is rth term , then we have


we do not get r as integer by solving above expression .
Hence -105 is not a ter in the given arithmetic progression series
Answered by Thiyagarajan K | 17 Oct, 2023, 08:27: AM
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