Ответ:2 =3a²-306+
(30+B)(9-6)
+aB-B&= =3. 2ab-
-22-3-1-
-2/6/15/cos 120 =
= /cres?20= cos (180-60)2
=2+1 3 = 2 + 1 =
Объяснение:
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Ответ:2 =3a²-306+
(30+B)(9-6)
+aB-B&= =3. 2ab-
-22-3-1-
-2/6/15/cos 120 =
= /cres?20= cos (180-60)2
=2+1 3 = 2 + 1 =
Объяснение: