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Автор - Anna3655

Упростите выражение

Ответ

Автор - har4enko78

a. (3^7/3)*3^-2=3^7/3^3=3^4=81

d.(1.5*a^3/b)(2.1*b^3/a)=3.15a^2*b^2

c. (9/4)*a^8*b^6

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