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(a) Find all [a] in s for which the equation [a]x=[1]has a solution. Then do the same thing for

(b)4

(c)3

(d)6

Short Answer

Expert verified

(a) a1,2,3,4

(b)a1,3

(c)a1,2

(d)a1,5

Step by step solution

01

Find the solution (a)

Make the table as:

aa0a1a2a3a4
000000
101234
T
20241
3
T
30314
2
T
40432
1
T

From the table, it is observed that[a]x=[1]; the solution isa1,2,3,4.

02

Find the solution (b)

Make the table as:

a
a0
a1
a2
a3

0
0
0
0
0

1
0
1
2
3
T
2
0
2
0
2

3
0
3
2
1
T

From the table, it is observed that [a]x=[1] ; the solution is[a]=[1],3

03

 Find the solution (c)

Make the table as:

a
a0
a1
a2

0
0
0
0

1
0
1
2
T
2
0
2
1
T

From the table, it is observed that [a]x=[1], the solution isa=1,2

04

Find the solution (d)

a
a0
a1
a2
a3
localid="1648069128253" a4
a5

0
0
localid="1648069323883" 0
localid="1648070104511" 0
0
0
0

1
0
1
2
3
4
5
T
2
0
2
localid="1648070165031" 4
0
2
4

localid="1648068852319" 3
0
3
0
3
0
3

4
0
4
2
0
4
2

5
0
5
4
3
2
1
T

From the table, it is observed that [a]x=[1], the solution isa=1,5

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