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Mathematics, 18.10.2019 15:30 berniceallonce22

What is the equation for a geometric sequence with a first term of 5 and a second term of −10?

an = 5(−2)n − 1
an = 5(2)n − 1
an = 5(−15)n − 1
an = 5(15)n − 1

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What is the equation for a geometric sequence with a first term of 5 and a second term of −10?
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