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Mathematics elective 2-2-definite integral, how is this step calculated?
as shown in the picture, I don t understand how the two steps are equal, and how does the formula indicated by the first arrow be calculated to the formula indicated by the second arrow?
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How to use python to realize this formula? Xiaobai asks for advice!
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Randomly generate a random number of 0100 (including 0100), guess three times, if you guess wrong for the third time, regenerate the random number of 0100. what is the probability of guessing right?
as mentioned in the question: randomly generate a random number of 0100 (including 0100), guess three times, if the third guess is wrong, regenerate the random number of 0100. what is the probability of guessing correctly ...
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Prove the inequality with double factorial
prove that for the integer $n ge 1 $
$$
2 ( sqrt {nylon 1}-1) le sum_ {kink 1} ^ n frac {(KMel 1)!} {kink!}
$$
where $!! $is double factorial operation.
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How to shift a rotated element?
I have two elements, a parent element and a child element. the parent element rotates N degrees. then I want to move the positioning of the child element, which moves relative to the parent element. how do I calculate the offset value. Let it move re...
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bcb6cd-30a72.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bcb6cd-30a72.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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