1ΑΔΒ = |1, - 1g|
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Q: Find a basis for the kernel and range of T(x, y, z) = (x − 4z, 2y + 3x)
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Q: 9. Let X = {0, 2x, x² +5, x³}. Determine with justification whether span(X) = P(3).
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Q: 4. Let A € Cmxn and B E Cnxm. Show that the nonzero eigenvalues of the products AB and BA are the…
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Q: Complete parts (a) and (b) for the matrix below. A = k= -4 -8 1-8 -2 8 -4 9 3 4-1 7 -5 -7 -6 -8 0…
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- Determine the accumulation points of the set {z : -π<Arg z<π}Let U={1,2, 3, ...,2400}.Let S be the subset of the numbers in U that are multiples of 3, and let T be the subset of U that are multiples of 7.Since 2400÷3=800, it follows that n(S)=n({3•1, 3•2, ..., 3•800})=800. (a) Find n(T) using a method similar to the one that showed that n(S)=800. (b) Find n(S∩T). (c) Label the number of elements in each region of a two-loop Venn diagram with the universe U and subsets S and T. Questions: Find n(T) ? Find n(SnT)Let Fn be the number of partitions of [n] that do not contain a singleton block. Find a simple relation between the numbers Fn and the Bell numbers
- Considerthreemappingsα,β,γ:Z→Zdefined by α(n)=2n−1, β(n)=(n−1)^2, γ(n)=(n−1)^3I'm trying to prove that if given the innumerable set A and the set B = {x, y}, then A X B is denumerable as well. Proof: All I have so far is that, assuming A is denumerable, we can create the sequence A = a1, a2, a3, ... By definition of cross-product, we can then form the sequence A X B = a1x, a1y, a2x, a2y, a3x, a3y, ... It should be clear that this sequence includes every element of AXB as, as such, A X B is denumerable. I am not entirely sure that this argument is valid.Prove using the short north-east diagonals↗or any other mathematical method of your preference, that if A is an enumerable set, then itis also countable with an enumeration that lists each of its members exactly 5 times.Let A have the enumeration A= a0,a1,a2,a3,a4...
- A company sells candy in jars that each have a volume of 3 cups. Each jar is filled above a certain line, guaranteeing that it has more than 3/8 cups of candy. In which of the following does the shaded region represent the possible volumes of candy, c, in cups, a customer may have, given that they bought j jars of candy?A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with two hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation. y p(x, y) 0 1 2 x 0 0.10 0.03 0.02 1 0.07 0.20 0.08 2 0.05 0.14 0.31 (a) Given that X = 1, determine the conditional pmf of Y—i.e., pY|X(0|1), pY|X(1|1), pY|X(2|1). (Round your answers to four decimal places.) y 0 1 2 pY|X(y|1) (b) Given that two hoses are in use at the self-service island, what is the conditional pmf of the number of hoses in use on the full-service island? (Round your answers to four decimal places.) y 0 1 2 pY|X(y|2) (d) Given that two hoses are in use at the…A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with two hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation. y p(x, y) 0 1 2 x 0 0.10 0.05 0.01 1 0.07 0.20 0.08 2 0.05 0.14 0.30 (d) Compute the marginal pmf of X. x 0 1 2 pX(x) Compute the marginal pmf of Y. y 0 1 2 pY(y) Using pX(x), what is P(X ≤ 1)? P(X ≤ 1) =
- Let {A_alpha: alpha is in Lambda} be an indexed collection of sets. My question is why we can say that for each beta that is in Lambda, if x is an element of A_beta, then x is an element of bigcup {A_alpha : alpha is in Lambda}. The "Big cup" means the union of the collection {A_alpha: alpha is in Lambda}. I know I have to use the attached definition (1.3.7), but I would like to know the detail reason.Consider a cube with the numbers 1, 2, 3, 4, 5, 6 on its sides and with (a) the results occur equally often, (b) the results 1, 2, 3, 5 (each considered separately) occur four times as often like the results 4, 6 (each considered individually). YOU describe the situation in each case by a discrete space (Ω, P (Ω), P) and examine in each case whether the events A:the result is greater than or equal to 4 "and B: the result is even" under the W. dimension P are independent.Let A be the set of all 50 students of Class X in a school. Let f : A → N befunction defined by f(x) = roll number of the student x. Show that f is one-onebut not onto.