1.

Write the nth term of the AP: 5, 9, 13, 17

Answer»

AP is 5, 9, 13, 17.....

a = 5

d = 9 - 5 = 4

a(n) = a + (n -1) d

= 5 + ( n -1) 4 = 5 + 4n - 4

= 4n +1



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