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What is the 7th term of the geometric sequence where a1 = 1,024 and a4 = −16? I got -0.25 for the answer but I'm not sure if it's right, can someone check for me?

What is the 7th term of the geometric sequence where a1 = 1,024 and a4 = −16? I got -0.25 for the answer but I'm not sure if it's right, can someone check for me?
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4 votes
What is the 7th term of the geometric sequence where a1 = 1,024 and a4 = −16?

I got -0.25 for the answer but I'm not sure if it's right, can someone check for me?

User Fardjad
by
7.5k points

1 Answer

5 votes

a7=1024⋅(−14)7−1

=1024⋅(−14)6

=45⋅(−14)6=−14=−0.25

User Cfi
by
8.1k points
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