what is the n-1 term of ap is 7,12,17,22
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Answered by
8
Answer:
(n-1)th term = 5n - 3.
Step-by-step explanation:
a1= 7
d = a2 - a1
= 12-7
= 5.
nth term of an A.P = a1 + (n-1)d
(n-1)th term = a1 + (n-1-1) d
= a1 + (n-2) d
= 7 + (n-2) 5
= 7 + 5n - 10
= 5n - 3.
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Answer:
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