3 years ago

Write an explicit formula for an, the nth term of the sequence 4, -24, 144, ....

Mathematics

1 answer:

nadezda [96]3 years ago

3 0

Answer:

Tn = 4(-6)^n-1

Step-by-step explanation:

Write an explicit formula for an, the nth term of the sequence 4, -24, 144, ....

The sequence is a geometric sequence

Tn = ar^n-1

a is the first term

a = 4

r = -24/4 =144/-24

r = -6

Substitute

Tn = 4(-6)^n-1

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