the nth term of the AP 9,13,17,21,25 is _____ .
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Step-by-step explanation:
A.P :- 9 , 13 , 17 , 21 , 25 ....
a ( first term ) = 9
d ( common difference ) = 13 - 9 = 4
an = a + ( n - 1 )d
an=9+(n-1) 4
an=9+4n-4
an=5+4n
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