Which term of Ap 4,9,14,. is 89
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18th no. term is 89.
Answered by
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Un= a + (n-1) d
89 = 4+ (n-1)5
89= 4 + 5n -5
89+5-4=5n
89+1=5n
90=5n
Divide both side by 5
N = 18
Therefore 89 is the 18th term
89 = 4+ (n-1)5
89= 4 + 5n -5
89+5-4=5n
89+1=5n
90=5n
Divide both side by 5
N = 18
Therefore 89 is the 18th term
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