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A sequence contains terms a1 , a2 , a3 ,.., an , such that a1
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20 May 2024, 00:26
20 May 2024, 00:26
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Question Stats:
50% (02:01) correct
50% (02:09) wrong based on 32 sessions
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A sequence contains terms \(a_1 , a_2 , a_3 ,....., a_n\) , such that \(a_1 = 25\) and every number after the first term is \(–2\) times the preceding term.
Quantity A |
Quantity B |
\(a_{100}\) |
\(-10,000\) |
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Re: A sequence contains terms a1 , a2 , a3 ,.., an , such that a1
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25 Aug 2024, 03:24
25 Aug 2024, 03:24
Expert Reply
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\(a_1=a=25\) and the common ratio is \(r=-2\)
QA is \(a_{100}=100^{th}\) term which is equal to \(ar^{99}=25(-2)^{99}\)
A clearly is \(< -10000\)
B is the answer
QA is \(a_{100}=100^{th}\) term which is equal to \(ar^{99}=25(-2)^{99}\)
A clearly is \(< -10000\)
B is the answer
Re: A sequence contains terms a1 , a2 , a3 ,.., an , such that a1
[#permalink]
09 Oct 2025, 02:18
09 Oct 2025, 02:18
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