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35.03.06
( )
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2015
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2) (.2).
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2
= | = | ||
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3
= ; = ; 2 - -1×A=? | |
= ; = ; (×B)-1 + B×A-1=? | |
= ; = ; ×-1 + 2B×A=? | |
= ; = ; -1×B - A×B-1=? | |
= ; = ; 2 - -1×A=? | |
= ; = ; 2- ×A-1=? | |
= ; = ; ×B-1 + ×A=? | |
= ; = ; B×A-1- A×B-1=? | |
= ; = ; 2(×B)-1- A× =? | |
= ; = ; 2-1×A + B×A=? |
4
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20