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                                                ElizavetaMusic 
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                                             lainzord 
                                                22.04.2021 20:12
                                                
                                                lainzord 
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                                             AZAZA2008 
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                                                AZAZA2008 
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                                                madievazarina 
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                                                серега657 
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                                                nvanislavskaya 
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                                                22.04.2021 20:07
                                                
                                                Natali250707 
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                                             Dariya160408589865 
                                                17.08.2019 12:50
                                                
                                                Dariya160408589865 
                                                17.08.2019 12:50
                                            
· b = ax · bx + ay · by + az · bz =
= 2 · (-8) + 3 · 2 + (-7) · 4 = -16 + 6 - 28 = -38