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OpenStudy (anonymous):
How many strings of eight uppercase English letters are there if no letter can be repeated?
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zepdrix (zepdrix):
I'm taking Combinatorics right now, so I NEED to be able to answer a question like this by next week's test lol grrr, it's giving me some trouble though >.< thinking...
zepdrix (zepdrix):
|dw:1442540278852:dw|Oh maybe this is simpler than I'm making it. So we have 26 options for the first letter, ya? Any uppercase letter from the English alphabet.
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