Show all your work. Let f(x) = x 5 e x 3 (i) Use the Taylor...
Show all your work. Let f(x) = x 5 e x 3 (i) Use the Taylor
series for e x around 0 to find the Taylor series for f(x) (ii) Use
(i) to find f (20)(0), f (21)(0), f (22)(0), f (23)(0)
5. (a) Let f : R \ {−1} → R, f(x) = x+1. Show that f is
injective, but not surjective.
(b) Suppose g : R\{−1} → R\{a} is a function such that g(x) =
x−1, where a ∈ R. Determine x+1
a, show that g is bijective and determine its inverse
function.
Problem 3. Let F ⊆ E be a field extension.
(i) Suppose α ∈ E is algebraic of odd degree over F. Prove that
F(α) = F(α^2 ). Hints: look at the tower of extensions F ⊆ F(α^2 )
⊆ F(α) and their degrees.
(ii) Let S be a (possibly infinite) subset of E. Assume that
every element of S is algebraic over F. Prove that F(S) = F[S]
Let be the following probability density function f (x) = (1/3)[
e ^ {- x / 3}] for 0 <x <1 and f (x) = 0 in any other
case
a) Determine the cumulative probability distribution F (X)
b) Determine the probability for P (0 <X <0.5)
f(x)=e^x/(3+e^x)
Find the first derivative of f.
Use interval notation to indicate where f(x) is increasing.
List the x coordinates of all local minima of f. If there are no
local maxima, enter 'NONE'.
List the x coordinates of all local maxima of f. If there are no
local maxima, enter 'NONE'.
Find the second derivative of f:
Use interval notation to indicate the interval(s) of upward
concavity of f(x).
Use interval notation to indicate the interval(s) of downward
concavity...
Let E and F be independent events. Show that the events E and F
care also independent.
Hint: Start with P(E∩Fc) =P(E)−P(E∩F) and use the independence
of E and F.
Please use excel and show all work and formulas. (I will give
your work a like if you do this)
Size (1000s sq. ft)
Selling Price ($1000s)
1.26
117.5
3.02
299.9
1.99
139.0
0.91
45.6
1.87
129.9
2.63
274.9
2.60
259.9
2.27
177.0
2.30
175.0
2.08
189.9
1.12
95.0
1.38
82.1
1.80
169.0
1.57
96.5
1.45
114.9
What are the p-values of the t test (for the
slope estimate) and F test?
What is the coefficient of determination?
What is...
(a) Let <X, d> be a metric space and E ⊆ X. Show
that E is connected iff for all p, q ∈ E, there is a connected A ⊆
E with p, q ∈ E.
b) Prove that every line segment between two points in R^k
is connected, that is Ep,q = {tp + (1 − t)q |
t ∈ [0, 1]} for any p not equal to q in R^k.
C). Prove that every convex subset of R^k...
3. Let X = {1, 2, 3, 4}. Let F be the set of all functions from
X to X. For any relation R on X, define a relation S on F by: for
all f, g ∈ F, f S g if and only if there exists x ∈ X so that
f(x)Rg(x).
For each of the following statements, prove or disprove the
statement.
(a) For all relations R on X, if R is reflexive then S is
reflexive....