Proof. First, we prove (i) by assuming that the constants A and B are nonzero numbers, $±V62-4 ko k1 $tV$2-4 ko k1 then |w2n| + 0. It is clear that if < 1, then » 0 as 2 otV62-4 ko k1 otV62-4 ko ki n → 0, while → 0 asn → 0 when > 1. Thus, 2 2 0+ Vo2 – 4 ko ki A 1- k1 + ko ko – k1, O - V02 – 4 koki lim w2n| lim + B n 00 n 00 2-4 ko k1 1- ki + ko 1- ко — k1 0 - V02 4 ko k1 A lim n 00 +B lim n 00 |() . (* $±V62-4 ko k1 -ki+ko 1-ko-ki) < 1, 0+V62-4 ko k1 > 1. Further, if wo = w-2 = 1-ki+ko 1-ko-ki u, then A and B are zero and we have 4 ko ki 1 – k1 + ko ko – k1 V 02 - 4 ko k1 Ф — V W2n A + B (1- kı + ko (1– ko – k1 ) Wo. The prove of (i) is done Similarly the other pronerties can be proved
Proof. First, we prove (i) by assuming that the constants A and B are nonzero numbers, $±V62-4 ko k1 $tV$2-4 ko k1 then |w2n| + 0. It is clear that if < 1, then » 0 as 2 otV62-4 ko k1 otV62-4 ko ki n → 0, while → 0 asn → 0 when > 1. Thus, 2 2 0+ Vo2 – 4 ko ki A 1- k1 + ko ko – k1, O - V02 – 4 koki lim w2n| lim + B n 00 n 00 2-4 ko k1 1- ki + ko 1- ко — k1 0 - V02 4 ko k1 A lim n 00 +B lim n 00 |() . (* $±V62-4 ko k1 -ki+ko 1-ko-ki) < 1, 0+V62-4 ko k1 > 1. Further, if wo = w-2 = 1-ki+ko 1-ko-ki u, then A and B are zero and we have 4 ko ki 1 – k1 + ko ko – k1 V 02 - 4 ko k1 Ф — V W2n A + B (1- kı + ko (1– ko – k1 ) Wo. The prove of (i) is done Similarly the other pronerties can be proved
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.6: Variation
Problem 11E
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