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(6) Pretend you know that the natural logarithm function log : (0,00) + R exists and...
1. (a) Let {fn}neN : [0,00) + R be a sequence of function define by: sin(nx)...
1. (a) Let {fn}neN : [0,00) + R be a sequence of function define by: sin(nx) fn(x) 1+ nx (i) Guess the pointwise limit f of fn on (0,00) and justify your claim. [15 Marks] (ii) Show that fn + f uniformly on ſa, 00), Va > 0. [10 Marks) (iii) Show that fn does not converge uniformly to f on (0,00) [10 Marks] (Hint: Show that ||fr|| 21+(1/2) (b) Prove that a continuous function f defined on a closed...
finition of the natural logarithm function and its properties) Define for 0 the function Inx h)...
finition of the natural logarithm function and its properties) Define for 0 the function Inx h) Because In is increasing on (0,o), it is one-to-one on (0,). Let exp denote its inverse. Show that exp is differentiable on R, and Da(exp(x)) -exp(x). 1) Denote exp(1) by e. Show that 2.5<e<3. (Hint: Refine the procedure used in part (d).) 0) Show that lim(1+1/n) e.Hint: Use part (g) and Theorem 3.4.13.) (k) Show that for any rational r, exp(r)e.(Hint: Use part (c).)...
Write out the power series of the function f(x) = In(1+ x) centered at r =...
Write out the power series of the function f(x) = In(1+ x) centered at r = 0. Determine the interval and radius of convergence. Use the power series and properties of the natural logarithm to approximate n to the nearest hundredths, and show the approximation is within 0.01. Please show your work
4. Define the function f: 0,00) +R by the formula f(x) = dt. +1 Comment: The...
4. Define the function f: 0,00) +R by the formula f(x) = dt. +1 Comment: The integrand does not have a closed form anti-derivative, so do not try to answer the following questions by computing an anti-derivative. Use some properties that we learned. (a) (4 points). Prove that f(x) > 0 for all x > 0, hence f: (0,00) + (0,0). (b) (4 points). Prove that f is injective. (c) (6 points). Prove that f: (0,00) (0,00) is not surjective,...
R such that f is integrable on every [a,b] (6) Suppose f is a function and...
R such that f is integrable on every [a,b] (6) Suppose f is a function and a where b> a. Then we define the improper integral eb f(x)dx=lim | b-oo Ja f(x)da, if that limit exists. Assume that f(x) is continuous and monotonically decreasing on [0,00). Prove that Joof exists if and only if Σ f(n) converges. This result is known as the integral test for series convergence.
Let g: R→R be a polynomial function of even degree and let B={g(x) ER) be the...
Let g: R→R be a polynomial function of even degree and let B={g(x) ER) be the range of g. Define g such that it has at least two terms. 1. Using the properties and definitions of the real number system, and in particular the definition of infimum, construct a formal proof showing inf(B) exists OR explain why B does not have an infimum. 2. Using the properties and definitions of the real number system, and in particular the definition of...
is: 6. (8 points) / is a function that is continuous on (-0,00). The first derivative...
is: 6. (8 points) / is a function that is continuous on (-0,00). The first derivative of /"(x) = (3x - 1)x+3X5 - x) Use this information to answer the following questions about : a. On what intervals is increasing or decreasing? Internal in which fis increasing or -- 8x-1) (x+3)(5-x) > 0 x=112, -3, -5 b. At what values of x does f have any local maximum or minimum values? - V2 ; Location(s) of Minima: Location(s) of Maxima:...
(b) Find the natural log of the likelihood function simplifying as much as possible. Loglikelihood =...
(b) Find the natural log of
the likelihood function simplifying as much as possible.
Loglikelihood =
(c) Take the derivative of the log likelihood function you found
in part (b) and make it 0. Solve for the unknown population
parameter as a function of some of the summary statistics we know
(X¯, or S 2 or whatever applies. ) That is your maximum likelihood
estimator (MLE) of the unknown parameter.
PART C ONLY
Problem 2. Consider a random sample of...
The natural log of 2, (In 2) can be found using the power series below: In...
The natural log of 2, (In 2) can be found using the power series below: In 2 1- Create an M-file function to implement this formula so that it computes and displays the values of In 2 as each term in the series is added. In other words, compute and display in sequence the values for up to the order term, n, as chosen by the user of the function. For each of the preceding, compute and display the percent...
6. We want to use the Integral Test to show that the positive series a converges....
6. We want to use the Integral Test to show that the positive series a converges. All of the following need to be done except one. Which is the one we don't need to do? (a) Find a function f(x) defined on [1,00) such that f(x) > 0, f(x) is decreasing, and f(n) = a, for all n. (b) Show that ſ f(z) dr converges. (e) Show that lim Ss6 f(x) dx exists. (d) Show that lim sexists. 7. Suppose...
1. (a) Let {fn}neN : [0,00) + R be a sequence of function define by: sin(nx) fn(x) 1+ nx (i) Guess the pointwise limit f of fn on (0,00) and justify your claim. [15 Marks] (ii) Show that fn + f uniformly on ſa, 00), Va > 0. [10 Marks) (iii) Show that fn does not converge uniformly to f on (0,00) [10 Marks] (Hint: Show that ||fr|| 21+(1/2) (b) Prove that a continuous function f defined on a closed...
finition of the natural logarithm function and its properties) Define for 0 the function Inx h) Because In is increasing on (0,o), it is one-to-one on (0,). Let exp denote its inverse. Show that exp is differentiable on R, and Da(exp(x)) -exp(x). 1) Denote exp(1) by e. Show that 2.5<e<3. (Hint: Refine the procedure used in part (d).) 0) Show that lim(1+1/n) e.Hint: Use part (g) and Theorem 3.4.13.) (k) Show that for any rational r, exp(r)e.(Hint: Use part (c).)...
Write out the power series of the function f(x) = In(1+ x) centered at r = 0. Determine the interval and radius of convergence. Use the power series and properties of the natural logarithm to approximate n to the nearest hundredths, and show the approximation is within 0.01. Please show your work
4. Define the function f: 0,00) +R by the formula f(x) = dt. +1 Comment: The integrand does not have a closed form anti-derivative, so do not try to answer the following questions by computing an anti-derivative. Use some properties that we learned. (a) (4 points). Prove that f(x) > 0 for all x > 0, hence f: (0,00) + (0,0). (b) (4 points). Prove that f is injective. (c) (6 points). Prove that f: (0,00) (0,00) is not surjective,...
R such that f is integrable on every [a,b] (6) Suppose f is a function and a where b> a. Then we define the improper integral eb f(x)dx=lim | b-oo Ja f(x)da, if that limit exists. Assume that f(x) is continuous and monotonically decreasing on [0,00). Prove that Joof exists if and only if Σ f(n) converges. This result is known as the integral test for series convergence.
Let g: R→R be a polynomial function of even degree and let B={g(x) ER) be the range of g. Define g such that it has at least two terms. 1. Using the properties and definitions of the real number system, and in particular the definition of infimum, construct a formal proof showing inf(B) exists OR explain why B does not have an infimum. 2. Using the properties and definitions of the real number system, and in particular the definition of...
is: 6. (8 points) / is a function that is continuous on (-0,00). The first derivative of /"(x) = (3x - 1)x+3X5 - x) Use this information to answer the following questions about : a. On what intervals is increasing or decreasing? Internal in which fis increasing or -- 8x-1) (x+3)(5-x) > 0 x=112, -3, -5 b. At what values of x does f have any local maximum or minimum values? - V2 ; Location(s) of Minima: Location(s) of Maxima:...
(b) Find the natural log of
the likelihood function simplifying as much as possible.
Loglikelihood =
(c) Take the derivative of the log likelihood function you found
in part (b) and make it 0. Solve for the unknown population
parameter as a function of some of the summary statistics we know
(X¯, or S 2 or whatever applies. ) That is your maximum likelihood
estimator (MLE) of the unknown parameter.
PART C ONLY
Problem 2. Consider a random sample of...
The natural log of 2, (In 2) can be found using the power series below: In 2 1- Create an M-file function to implement this formula so that it computes and displays the values of In 2 as each term in the series is added. In other words, compute and display in sequence the values for up to the order term, n, as chosen by the user of the function. For each of the preceding, compute and display the percent...
6. We want to use the Integral Test to show that the positive series a converges. All of the following need to be done except one. Which is the one we don't need to do? (a) Find a function f(x) defined on [1,00) such that f(x) > 0, f(x) is decreasing, and f(n) = a, for all n. (b) Show that ſ f(z) dr converges. (e) Show that lim Ss6 f(x) dx exists. (d) Show that lim sexists. 7. Suppose...
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