The (n-1)th term of an A.P. is given by 7,12,17, 22,... is
Solution:- Given the ap is 7,12,17,22.......
a=7 , d=12-7=5
(n-1)th term of ap is
an-1=a+(n-1-1)d
an-1=7+(n-2)×5
an-1=7+5n-10
an-1=5n-3 ans....
The (n-1)th term of an A.P. is given by 7,12,17, 22,... is
August 13, 2021
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