1. Prove the following lemma: 8. Lemma A. Let {xn}1 be a sequence of real numbers. We define two new sequences {En}, and {On} as: n=1 n=1 n Sn=1 Vn E Zt, En = x2n) Vn E Z*, On = x2n-1 • IF the sequences {En}-1 and {On}=1 are both convergent to the same limit • THEN the sequence {xn}n=1 is also convergent. %3D1 Suggestion: Use the definition of limit.

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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1. Prove the following lemma:
Lemma A. Let {xn}-1 be a sequence of real numbers. We define two new
sequences {En}1 and {On} as:
n=1
n=1
n=1
Vn e Zt, En = x2n)
Vn E Zt, On = x2n-1
%3D
• IF the sequences {En}=1 and {On}=1 are both convergent to the same limit,
• THEN the sequence {xn}n=1 is also convergent.
Suggestion: Use the definition of limit.
Transcribed Image Text:1. Prove the following lemma: Lemma A. Let {xn}-1 be a sequence of real numbers. We define two new sequences {En}1 and {On} as: n=1 n=1 n=1 Vn e Zt, En = x2n) Vn E Zt, On = x2n-1 %3D • IF the sequences {En}=1 and {On}=1 are both convergent to the same limit, • THEN the sequence {xn}n=1 is also convergent. Suggestion: Use the definition of limit.
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