Определите отрицательное и положительное (-1)∙ ( -2)∙ ( -3) ... ∙ ( -999) ;      

                                 

( -1) ∙ (-2) ∙ (-3) ...∙ (- 2000);

( 1 - 2 + 3 - 4  + ... -  100 )  ∙( -1) ; 

                                             

(-1 + 2 -3 +4 - ... + 100) ∙ (-1);

1∙ ( -2  )∙ 3∙ ( -4) ... ∙ 275 ;      

                                                    

( -1) ∙ 2 ∙ ( -3) ∙ 4∙  ...∙ 150;  

1+  (- 2) + 3+( -4) + 5 + ( -6 ) +7 + (- 8) + 9 + (- 10)    

           

-1 +2+(-3) +4 +(- 5 ) +6 + (- 7) +8 +(-9) +10.

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alikhankoshpanov    3   02.12.2020 10:17    1