20th term of the AP 9,13,17,21.........
Answers
Answered by
6
a=9
d=13-9=4
therefore..
a20= a+19d
= 9+19×4
=9+76
= 85
Hope it helps
d=13-9=4
therefore..
a20= a+19d
= 9+19×4
=9+76
= 85
Hope it helps
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Answered by
1
85is the20th term of this ap
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