Предмет: Математика, автор: NetyZnanii

Помогите сделать номер 7

Приложения:

lisenokalisa09: кавычки???? или что это??? сами напечатайте!!!

Ответы

Автор ответа: ivanfisa

0

$|2a - 3 | \frac{5}{a} | | = |2 \times ( - 3) - 3 | \frac{5}{ - 3} | | = | - 6 - 3 \times \frac{5}{3} | = | - 6 - 5| = | - 11| = 11$

Автор ответа: natali15medved

0

Если (5+а)>0, то I2a-3(5+a)I=I(-(a+15)I=I-(-3+15)I=I-12I=12
Если 5+а<0, то I2a-3(-5-a)I=I5a+15I=I5*(-3)+15I=0
Ответ: 0; 12

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