if an = 5+(n-1) 3,find a20
Answers
Answered by
0
The 20th term of an AP, = 62
Step-by-step explanation:
We have,
= 5 + (n - 1)3
To find, the value of = ?
Put n = 1, 2, 3, 4, ...
The 1st term of an AP ( n = 1)
= 5 + (1 - 1)3 = 5 + 0 = 5
The 2nd term of an AP ( n = 20)
= 5 + (2 - 1)3 = 5 + 3 = 8
The 3rd term of an AP ( n = 3)
= 5 + (3 - 1)3 = 5 + 6 = 11
...
The 20th term of an AP ( n = 20)
= 5 + (20 - 1)3 = 5 + (19)3 = 5 + 57 = 62
∴ The 20th term of an AP, = 62
mark as brainlust
Answered by
0
Answer:
62
Step-by-step explanation:
Pls refer above image.
Attachments:
Similar questions
Math,
3 months ago
Science,
7 months ago
English,
7 months ago
Chemistry,
11 months ago
Business Studies,
11 months ago