1) Find the inverse of 6- 5V7 in the fied QI V7I a BEC ala + 6)= Àg + 2e %3D

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter7: Real And Complex Numbers
Section7.2: Complex Numbers And Quaternions
Problem 36E
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3) Find the solution in the field of the complex numbers to the linear equation
1) Find the inverse of 6- 5/7 in the field Q[ V7
2) Show that for all 2, a, B E C, 1(a +B)3Aa+2R
2 Find the solution in the field of the compiex numbers to the linear equation
5) Let Fg have elements {0, 1, 2, 3, 4} and assume that addition and multiplication are given
%3D
2x- (1+2i) = -ix + (2 + 2i).
2-i
1+2i/
bove elements (0, 1, 2, 3, 4} and assume that addition and multiplication are given
6+i
%3D
4) Find all vectors v E C such that (1 + i)v+
3+6i
by the following tables:
O5 01
234
O5 1
2 34
1234
0123 4
2.
2 4 13
1
1234 0
3.
3 142
2340| 1
43 21
3.
3401 2
4
4 01
2 3
a) How can we immediately tell from these tables that the operations of addition and
multiplication are commutative? YOw and colums eueelo the ud. squc
b) How can we conclude from the addition table that 0 is an additive identity?
c) How can we conclude from the addition table that every element has an additive inverse
relative to 0?
d) How can we conclude from the multiplication table that 1 is a multiplicative identity?
e) How can we conclude from the multiplication table that every non-zero element has an
multiplicative inverse relative to 1?
6) Making use of the tables for the field Fs in exercise 5, find the solution to the linear
equation 3x +2 = 4, where the coefficients of this equation are considered to be
elements of Fg.
GONES
7) Find all vectors v in F such that 2v +
()
2.
Transcribed Image Text:3) Find the solution in the field of the complex numbers to the linear equation 1) Find the inverse of 6- 5/7 in the field Q[ V7 2) Show that for all 2, a, B E C, 1(a +B)3Aa+2R 2 Find the solution in the field of the compiex numbers to the linear equation 5) Let Fg have elements {0, 1, 2, 3, 4} and assume that addition and multiplication are given %3D 2x- (1+2i) = -ix + (2 + 2i). 2-i 1+2i/ bove elements (0, 1, 2, 3, 4} and assume that addition and multiplication are given 6+i %3D 4) Find all vectors v E C such that (1 + i)v+ 3+6i by the following tables: O5 01 234 O5 1 2 34 1234 0123 4 2. 2 4 13 1 1234 0 3. 3 142 2340| 1 43 21 3. 3401 2 4 4 01 2 3 a) How can we immediately tell from these tables that the operations of addition and multiplication are commutative? YOw and colums eueelo the ud. squc b) How can we conclude from the addition table that 0 is an additive identity? c) How can we conclude from the addition table that every element has an additive inverse relative to 0? d) How can we conclude from the multiplication table that 1 is a multiplicative identity? e) How can we conclude from the multiplication table that every non-zero element has an multiplicative inverse relative to 1? 6) Making use of the tables for the field Fs in exercise 5, find the solution to the linear equation 3x +2 = 4, where the coefficients of this equation are considered to be elements of Fg. GONES 7) Find all vectors v in F such that 2v + () 2.
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