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what is the 100th term of 81,64,47,30

Sagot :

Olumideolawoyinidn

Answer:

- 1602

Step-by-step explanation:

a = first term = 81

d = second term - first term = third term - second term

d = 64 - 81 = 47 - 64

d = - 17

Therefore,

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

100th term = 81 + (100 - 1) (-17)

100th term = 81 + (99)(-17)

100th term = 81 - 1683

100th term = - 1602

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