Question

if an = 5- 3n find the 7th term of an ap ​

Answer 1

Answer: -16

Step-by-step explanation:

an=5-3n

Let n=1...a1=5-3×1=5-3=2

Let n=2....a2=5-3×2=5-6=-1

d=a2-a1=-1-2=-3

Seventh term a7=a+6d=2+6×-3=2-18=-16

Answer 2

Answer:

Given an=5-3n =-16

Step-by-step explanation:

let n =7

PUT n=7

=5-3(7)

=5-21

= -16

so the 7th term of the AP is -16 .

HOPE IT HELPS YOU.

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