Jsou dány množiny A = \{x ∈ \mathbb{Z};\ x > 3 \} a B = \{x ∈ \mathbb{Z};\ x ≤ 7 \}. Jaký je počet prvků\large A \cap B ?
3 prvky → A ∩ B = \{4;5;6 \}
Unchecked
2 prvky → A ∩ B = \{6;7 \}
Unchecked
4 prvky → A ∩ B = \{4;5;6;7 \}
Unchecked
5 prvků → A ∩ B = \{3;4;5;6;7 \}
Unchecked
Hint
Hint
Opět děláš průnik množin a pak pouze spočítáš počet společných prvků.
🍪 Set your invisibility cloak ⚡
Welcome to the magical world of cookies! 🧙♂️ We use them to give you the best experience and to understand how you make magic with our app. Don't worry, these cookies aren't from Bertie's Beans 1000 Times Different - they're here to make everything work magically so we can keep improving our app. Your preferences are like a magic wand to us - you can change them anytime afterwards. Just click on the link in the footer called "Edit Cookies 🍪" and conjure up the settings exactly to your liking. If you want to know more about how we process cookies, you can find it on this page.