Предмет: Алгебра, автор: sdssfxxdsd

Помогите пожалуйста с примером

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Автор ответа: aiaru2023ns

Ответ:

0.16 ИЛИ 0.195

Объяснение:

4а²/25а² это мы его упрастили,теперь поставим а на место.а у нас ЕСЛИ 20 И 19.: 4*20²/25*20²=1600/10000=0.16

и а=19

4*19²/25*19²=1444/9025=0.16

А если 20.19:

4*20.19²/25*20.19²=1630(жуыктаганда)/10190(жуыктаганда)=0.159

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