Используя метод Гаусса,вычислите сумму(2-4) (30*25-25*27)+(27*24-24*24)+(24*23-23*21)+(21*22-22*18. Created by ranagulnizamed. matematika-ru

Используя метод Гаусса,вычислите сумму(2-4) (30*25-25*27)+(27*24-24*24)+(24*23-2...

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Используя метод Гаусса,вычислите сумму(2-4)
(30*25-25*27)+(27*24-24*24)+(24*23-23*21)+(21*22-22*18

Answers & Comments

Никитос7373 ((30·25-25·27)+(27·24-24·24)+(24·23-23·21)+(21·22-22·18)=
=25(30-27)+24(27-24)+23(24-21)+22(21-18)=
=25·3+24·3+23·3+22·3=3(25+24+23+22)=3·94=282
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