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OpenStudy (anonymous):
How many different bit strings of length 5 has exactly three 1s?
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OpenStudy (anonymous):
This is a combinatoric question. Bit string => 0 or 1 Length 5 => {-----} where - stands for one bit string Exactly 3 1s so: \[\left(\begin{matrix}5 \\ 3\end{matrix}\right)\]
OpenStudy (anonymous):
thnkx
OpenStudy (anonymous):
salam too all of u
OpenStudy (anonymous):
please send me a ans oferror formula for sum ,product,and roots?
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