Question

1. Find the 20th term of A.P with first term 5with common differncey4​

Answer 1

Answer:

81

Step-by-step explanation:

tn = a + (n-1)d

= 5 + 19×4

= 5 + 76

= 81

Answer 2

Answer:

The 20th term of A.P with first term 5 with common difference 4​ is 81.

Step-by-step explanation:

Given :-

First term if an AP = a = 5

Common difference = d = 4

No. of terms = n = 20

Find :20th term of AP

Formula :

$a_n = a + (n - 1)d\\an = 5 + (20 - 1)4\\ = 5 + (19)4 \\= 5 + 76 \\= 81$

The 20th term of the AP is 81.