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mlguerrero12
01.04.2020 •
Mathematics
Please help math question
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Ответ:
Step-by-step explanation:
If matrices A and B are inverses of one another, suffice it to say that their product will ALWAYS be the identity matrix, which is d.
I could show you that this is true, but it is EXTREMELY tedious in this forum to do so. Just remember the rule above and you'll learn why as you do more of these problems.
Ответ:
1/28, 3/14, 1/28
Step-by-step explanation: There are two Jokers in the deck. This is 2/56 chance, which is reduced to 1/28. There are 12 face cards: 4 Kings, 4 Queens, and 4 Jacks. This is 12/56, which reduces to 3/14. There are two red aces: The Ace of Diamonds and the Ace of Hearts. This is a s2/56 chance, which reduces to 1/28 chance.