the first three terms of an ap are respectively (3n-1),(3n+5) and (5n+1) find n
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1
Answer:
the first three term of an ap are (3n-1)
Step-by-step explanation:
that answers is 1/3
Answered by
1
Answer:
a = 3n -1
đ = a2-a1
d=3n +5 -(3n -1 )
d= 6
A n = a+ (n-1) d
= (3n -1) + (n-1) (d)
= (3n-1) +( n-1)(6)
= 3n -1 + 6n -6
= (9n -7)
9n-7 is the answer of the question
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