срочно! 30 баллов! задание на фото. Created by justgamer2000. matematika-ru

срочно! 30 баллов! задание на фото...

justgamer2000 @justgamer2000

June 2022 1 22 Report

срочно! 30 баллов!
задание на фото

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Эксперт5

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$A_x^2=72\\\\ \frac{x!}{(x-2)!}=72\\\\(x-1)x=72\\x^2-x-72=0\\\\x_1=-8\\x_2=9 \in N\\\\x=9$ \\\\ $A_{x+1}^2=90\\\\ \frac{(x+1)!}{(x+1-2)!}=90\\\\ \frac{(x+1)!}{(x-1)!}=90\\\\x(x+1)=90 \\x^2+x-90=0\\\\x_1=-10\notin N\\x_2=9 \in N\\\\x=9$

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justgamer2000 а что за nex

justgamer2000 tex*

justgamer2000 и N

Эксперт5 N - множество натуральных чисел

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Verified answer

please help me choose the best variant 1 at six oclock last night i

perepishi predlozheniya v passive voice 1 they offered tourists a free sightseein

obratite vnimanie na upotreblenie omofonov slov zvuchashih odinakovo no obozna

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pomogite srochno kak budet sebya vesti elektron vletayushij v odnorodnoe magnit

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III. Write in PLAY, GO, or DO. There are three of each. __ tennis _ ...