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Answered

Find the common ratio of the geometric sequence 9, -18, 36,...

Answer :

DESANIAMIYA101IN

Answer:

-2

Step-by-step explanation:

Each term is multiplied by -2 to get the next term

JCHERRY99IN

Answer:

Step-by-step explanation:

All even members of the sequence are -

All odd  members of the sequence are +

Ignore that for the moment and let's just find the ratio.

t_n/t_n-1 = - 2

t_2/t_n-1 = -18/9 = - 2

t_3/t_2 = 36/-18 = - 3

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