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3 years ago

7

Arithemetric sequence 4,16,28,40,52

1 answer:

Rom4ik [11]3 years ago

5 0

Answer:

-8 + 12n

Step-by-step explanation:

First term = a = 4

Common difference = d = second term - first term

= 16 - 4

= 12

Nth term = a + (n -1) *d

= 4 + (n - 1)*12

= 4 + n*12 - 1*12

= 4 + 12n - 12

= 4 - 12 + 12n

= -8 + 12n

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