Learning starts with a question
First time here? Checkout the FAQs!

*Math Image Search only works best with zoomed in and well cropped math screenshots. Check DEMO

0 like 0 dislike
Let \(n\) be a positive integer. Consider the sum \(x_1 y_1+x_2 y_2+\cdots+x_n y_n\) for any \(2 n\) numbers \(a_i, b_i\) taking only the values 0 and 1 . Denote by \(I(n)\) the number of \(2 n\)-tuples \(\left(x_1, x_2, \ldots, x_n, y_1, y_2, \ldots, y_n\right)\) for which this sum is odd, and by \(P(n)\) the number of those for which this sum is even. Prove that
in Mathematics by Platinum (143,296 points) | 66 views

Related questions

Join the MathsGee Q&A forum where you get STEM education support to succeed from our community. Connect and Learn.

On the MathsGee Q&A Forum, you can:

1. Ask questions

2. Answer questions

3. Vote on questions and answers

4. Start a fundraiser

5. Tip your favorite community members

6. Create Live Video Tutorials (Paid/Free)

7. Join Live Video Tutorials (Paid/Free)

8. Earn points by participating

MathsGee Q&A forum post

1. Remember the human

2. Act like you would in real life

3. Find original source of content

4. Check for duplicates before publishing

5. Read the community guidelines


1. Answers to questions will be posted immediately after moderation

2. Questions will be queued for posting immediately after moderation

3. Depending on the number of messages we receive, you could wait up to 24 hours for your message to appear. But be patient as posts will appear after passing our moderation.


Acalytica | Web Analytics | SEO Reports | Social Proof Tool | Email Marketing

MathsGee Android Q&A