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dau coroana si 20 puncte

Dau Coroana Si 20 Puncte class=

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VicentiuYT22
a)
[tex] \frac{1}{12} \times \frac{1}{2} + \frac{1}{12} \times \frac{1}{3} + \frac{1}{12} \times \frac{13}{6} = \frac{1}{24} + \frac{1}{36} + \frac{13}{72} = \frac{1}{4} [/tex]
b)1/18
c)79/13

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