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Yechish: A matritsaning determinantini hisoblaymiz.

=

Demak, berilgan A matritsaga teskari matritsa mavjud. Uni topish uhun determinantning barcha algebraik toyamiz:

A^-1

8. A matritsa berilgan. Bu matritsaga teskari matritsa topilsin.

Yechish: A matritsaning determinantini hisoblaymiz.

=.

Demak, =10. Bu esa berilgan matritsa uchun teskari matrirsani mavjud boldiruvchilarini topamiz.