Question

find 20 th term of an A.P which first term is 5 second term 8 third term 11 and ​

Answer 1

Answer:

20 th term=62✔✔

Step-by-step explanation:

SO YOUR QUESTION IS THAT

○20 th TERM OF AN GIVEN A.P=?

AND INFORMATION ABOUT THAT A.P IS

□a=5✔✔

□a2=8✔✔

□n=20✔✔

SO FIRST WE FIND THE DIFFERENCE OF TWO NUMBER

□d=a2-a1=8-5=3✔✔

ACCORDING TO FORMULA

An=a+(n-1)×d

=5+(20-1)×3

=5+19×3

=62