Answered

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Given the sequence {-2,6,-18......} write an explicit rule and find a8

Sagot :

ashish4112119

Answer:

4374

Step-by-step explanation:

common ratio is -3

geometric sequence

an = a1 * r^(n-1)

a8 = -2*-3^(8-1)

a8 = -2*-3^7

a8 = -2 * (-2187)

a8 = 4374

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