October 2021 0 9 Report
Выбери верные ответы расставь скобки так,чтобы получилось тождество
1) -а2+б2-б2-а2=0
-а2+б2-(б2-а2)=0
-а2+(б2-б2)-а2+0
(-а2+б2)-б2-а2+0
2)а2-б2-а2+б2=-2б2
(а2-б2)-а2+б2=-2б2
а2-б2-(а2+б2)=-2б2
а2-(б2-а2)+б2=-2б2
3)а2-б2-а2+б2=2а2
(а2-б2)-а2+б2=2а2
а2-(б2-а2)+б2=2а2
а2-б2-(а2+б2)=2а2
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