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Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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Solution:

(a 1) IF you used a basis

Alternative Method: you will get the same answer by using Basis change matrix


(


Solution 1-(b) Solution: You will solve the following equation for a,b,c


which amounts to solve



a2) IF you used basis


Alternative Method: You will get the same answer by using Basis change matrix

=

1-(b-) If you are using as a basis



which amounts to solve















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Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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Solution: 2

(a)



(b) Nullity + Rank = Dimension of the domain = 3




(c)

















Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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(a) Notice that


(b)To find the kernel we set

(d) But T is not an isomorphism because it is not 1-1 since Kernel has more than 0; .not only zero function but also all constant functions.











to




Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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Solution to Problem 4:



Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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Solution to Problem 5:

  1. Ans:=6

expand minor along any row or colum. I chose the row 1

  1. Ans: 6

Determinant of a triangular matrix is the product of the diagonals.

det = 2*1*3*1=6

  1. Ans: 0

Notice that the first row and the 4th row are same. If we call the given matrix by A and rows by E1,E2, E3 and E4.

Subtract the 1st row from the last row gives the last row all 0.

the determinant of a matrix whose row is all zero is zero. (expand minors by the zero row. )

Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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Solution to 6. The determinant is a multilinear map with regards to column. I.e.

Start with a nxn square matrix with (n-1) columns fixed and one column is a variable.

T is a linear transformation on one column. at a time. Ie.


(b)


Solution to Problem 1 with changed basis

Solution to Problem 1 with unchanged basis

Solution to Problem 2

Solution to Problem 3

Solution to Problem 4

Solution to Problem 5

Solution to Problem 6

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