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This is the Quiz of Linear Algebra which includes Satisfies the Conditions, Information, Explicit Conditions, Guarantee, Conditions, Basis, Linear Combination, Basis Vectors, Column Vector, Bottom Entry etc. Key important points are: Number of Entries, Values, Give the Reason, Product, Entry, Matrix Product, Size, Method, Answer, Statements
Typology: Exercises
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Math 205A Quiz 04 page 1 October 13, 2008 NAME
3 7 w 2 9 5 1 3 0 2 4 6
(^) let D =
. Suppose the 1-1 entry of the product^ CD^ is 51.
Find each of the following values. If the value doesn’t exist write “DNE” in the box, and give the reason.
a. The number of entries in CD. b. The 2-1 entry of CD.
c. The 4-3 entry of CD. d. The value of w.
e. The 3-2 entry of CT^. f. The 2-3 entry of (DC)T
g. The 2-3 entry of (CD)T^ h. The size of the matrix product C CT^.
i. The 2-1 entry of DT^ D. j. The 1-2 entry of DT^ D.
(^) and let b =
2a. Find A−^1 on your calculator using any method you like. Give your answer in fractions!
2b. Solve Ax = b. Give your answer in fractions!
3a.
3b.
3c.
3d.