Question

Let n greater than or equal to 1 be a positive integers, and let X1, X2,.....,...

Let n greater than or equal to 1 be a positive integers, and let X1, X2,....., Xn be closed subsets of R. Show that X1 U X2 U ... Xn is also closed.

Math   Advanced-Math   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Let n ≥ 2 and x1, x2, ..., xn > 0 be such that x1 +...
Let n ≥ 2 and x1, x2, ..., xn > 0 be such that x1 + x2 + · · · + xn = 1. Prove that √ x1 + √ x2 + · · · + √ xn /√ n − 1 ≤ x1/ √ 1 − x1 + x2/ √ 1 − x2 + · · · + xn/ √ 1 − xn
Suppose {x1,x2,...xn} is linear dependent and {x1,x2} is linear independent. Show that:  2 < than or equal...
Suppose {x1,x2,...xn} is linear dependent and {x1,x2} is linear independent. Show that:  2 < than or equal to (Span(x1,x2,...xn)) < n.
1. Let n be an odd positive integer. Consider a list of n consecutive integers. Show...
1. Let n be an odd positive integer. Consider a list of n consecutive integers. Show that the average is the middle number (that is the number in the middle of the list when they are arranged in an increasing order). What is the average when n is an even positive integer instead? 2. Let x1,x2,...,xn be a list of numbers, and let ¯ x be the average of the list.Which of the following statements must be true? There might...
Consider three positive integers, x1, x2, x3, which satisfy the inequality below: x1 + x2 +...
Consider three positive integers, x1, x2, x3, which satisfy the inequality below: x1 + x2 + x3 = 17. Let’s assume each element in the sample space (consisting of solution vectors (x1, x2, x3) satisfying the above conditions) is equally likely to occur. For example, we have equal chances to have (x1, x2, x3) = (1, 1, 15) or (x1, x2, x3) = (1, 2, 14). What is the probability the events x1 + x2 ≤ 8 occurs, i.e., P(x1...
Consider the sequence (xn)n given by x1 = 2, x2 = 2 and xn+1 = 2(xn...
Consider the sequence (xn)n given by x1 = 2, x2 = 2 and xn+1 = 2(xn + xn−1). (a) Let u, w be the solutions of the equation x 2 −2x−2 = 0, so that x 2 −2x−2 = (x−u)(x−w). Show that u + w = 2 and uw = −2. (b) Possibly using (a) to aid your calculations, show that xn = u^n + w^n .
Let X1, X2, . . . , Xn be a random sample of size n from...
Let X1, X2, . . . , Xn be a random sample of size n from a distribution with variance σ^2. Let S^2 be the sample variance. Show that E(S^2)=σ^2.
Let x1, x2, ..., xk be linearly independent vectors in R n and let A be...
Let x1, x2, ..., xk be linearly independent vectors in R n and let A be a nonsingular n × n matrix. Define yi = Axi for i = 1, 2, ..., k. Show that y1, y2, ..., yk are linearly independent.
Let X1, X2, ..., Xn be a random sample (of size n) from U(0,θ). Let Yn...
Let X1, X2, ..., Xn be a random sample (of size n) from U(0,θ). Let Yn be the maximum of X1, X2, ..., Xn. (a) Give the pdf of Yn. (b) Find the mean of Yn. (c) One estimator of θ that has been proposed is Yn. You may note from your answer to part (b) that Yn is a biased estimator of θ. However, cYn is unbiased for some constant c. Determine c. (d) Find the variance of cYn,...
Let m and n be positive integers and let k be the least common multiple of...
Let m and n be positive integers and let k be the least common multiple of m and n. Show that mZ intersect nZ is equal to kZ. provide justifications pleasw, thank you.
Let m and n be positive integers and let k be the least common multiple of...
Let m and n be positive integers and let k be the least common multiple of m and n. Show that mZ intersect nZ is equal to kZ. provide justifications please, thank you.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT