Предмет: Алгебра, автор: ItsPower

Найдите 25-ый член арифметической прогрессии -3 ; -6 ; ...

Ответы

Автор ответа: Andrey54rus
0
d=a2-a1; d=-9;
a25=a1+(n-1)*d;
a25=-3+24*(-9);
a25=-219

Автор ответа: Andrey54rus
0
ой
Автор ответа: Andrey54rus
0
ща
Автор ответа: Andrey54rus
0
d=a2-a1; d=-3;
a25=a1+(n-1)*d;
a25=-3+24*(-3);
a25=-75
Автор ответа: Andrey54rus
0
там просто d=-6-(-3), тупанул
Автор ответа: ItsPower
0
Спасибо
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