The extended Euclidean algorithm computes the gcd of two integers ro and r₁ as a linear combination of the inputs. gcd(ro, r₁) = Here s and t are integers known as the Bezout coefficients. They are not unique. = s · ro + t · r₁ The algorithm works like the standard Euclidean algorithm, except that at each stage the current remainder î¿ is expressed as a linear combination of the inputs. rį = sįro + t¿r₁. = This produces a sequence of numbers To, 1,,Tn-1, n where n 0 and gcd(ro, r₁) = Tn-1. Suppose that ro T₁ = 382. What is GCD(420,382)? What is s? Give the sequence ro, T1,..., Tn-1, în in the blank below. Enter your answer as a comma separated list of numbers. What is t? = 420 and

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 2CEXP
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The extended Euclidean algorithm computes
the gcd of two integers ro and r₁ as a linear
combination of the inputs.
gcd(ro, r₁) = s.ro + t •rı
Here s and t are integers known as the Bezout
coefficients. They are not unique.
The algorithm works like the standard Euclidean
algorithm, except that at each stage the current
remainder
ri is expressed as a linear combination of the
inputs.
ri = siro + tir₁.
This produces a sequence of numbers
To, T1,
Tn-1, Tn where r = 0 and
gcd(ro, r₁) = Tn-1. Suppose that ro = 420 and
T1 = 382.
Give the sequence ro, T1,..., Tn-1, în in the blank
below. Enter your answer as a comma separated list of
numbers.
What is GCD(420,382)?
What is s?
What is t?
Transcribed Image Text:The extended Euclidean algorithm computes the gcd of two integers ro and r₁ as a linear combination of the inputs. gcd(ro, r₁) = s.ro + t •rı Here s and t are integers known as the Bezout coefficients. They are not unique. The algorithm works like the standard Euclidean algorithm, except that at each stage the current remainder ri is expressed as a linear combination of the inputs. ri = siro + tir₁. This produces a sequence of numbers To, T1, Tn-1, Tn where r = 0 and gcd(ro, r₁) = Tn-1. Suppose that ro = 420 and T1 = 382. Give the sequence ro, T1,..., Tn-1, în in the blank below. Enter your answer as a comma separated list of numbers. What is GCD(420,382)? What is s? What is t?
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